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Finding the Fourth Proportional to 487,070.60, 730,605.90 and 221,350.10

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Solution

The fourth proportional to 487,070.60, 730,605.90 and 221,350.10 is: 332,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,070.60 : 730,605.90 = 221,350.10 : x
  2. Step 2: Convert to fraction form
    487,070.60/730,605.90 = 221,350.10/x
  3. Step 3: Cross multiply
    487,070.60x = 730,605.90 × 221,350.10
  4. Step 4: Simplify right side
    487,070.60x = 161,719,689,025.59
  5. Step 5: Solve for x
    x = 161,719,689,025.59/487,070.60
  6. Step 6: Final answer
    x = 332,025.15

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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.