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Finding the Fourth Proportional to 502,406.90, 753,610.35 and 169,982.90

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Solution

The fourth proportional to 502,406.90, 753,610.35 and 169,982.90 is: 254,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,406.90 : 753,610.35 = 169,982.90 : x
  2. Step 2: Convert to fraction form
    502,406.90/753,610.35 = 169,982.90/x
  3. Step 3: Cross multiply
    502,406.90x = 753,610.35 × 169,982.90
  4. Step 4: Simplify right side
    502,406.90x = 128,100,872,763.02
  5. Step 5: Solve for x
    x = 128,100,872,763.02/502,406.90
  6. Step 6: Final answer
    x = 254,974.35

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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.