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Finding the Fourth Proportional to 503,421.40, 755,132.10 and 170,997.40

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Solution

The fourth proportional to 503,421.40, 755,132.10 and 170,997.40 is: 256,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,421.40 : 755,132.10 = 170,997.40 : x
  2. Step 2: Convert to fraction form
    503,421.40/755,132.10 = 170,997.40/x
  3. Step 3: Cross multiply
    503,421.40x = 755,132.10 × 170,997.40
  4. Step 4: Simplify right side
    503,421.40x = 129,125,625,756.54
  5. Step 5: Solve for x
    x = 129,125,625,756.54/503,421.40
  6. Step 6: Final answer
    x = 256,496.10

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.