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Finding the Fourth Proportional to 486,113.40, 729,170.10 and 170,602.20

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Solution

The fourth proportional to 486,113.40, 729,170.10 and 170,602.20 is: 255,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,113.40 : 729,170.10 = 170,602.20 : x
  2. Step 2: Convert to fraction form
    486,113.40/729,170.10 = 170,602.20/x
  3. Step 3: Cross multiply
    486,113.40x = 729,170.10 × 170,602.20
  4. Step 4: Simplify right side
    486,113.40x = 124,398,023,234.22
  5. Step 5: Solve for x
    x = 124,398,023,234.22/486,113.40
  6. Step 6: Final answer
    x = 255,903.30

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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.