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Finding the Fourth Proportional to 514,324.80, 771,487.20 and 159,447.60

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Solution

The fourth proportional to 514,324.80, 771,487.20 and 159,447.60 is: 239,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,324.80 : 771,487.20 = 159,447.60 : x
  2. Step 2: Convert to fraction form
    514,324.80/771,487.20 = 159,447.60/x
  3. Step 3: Cross multiply
    514,324.80x = 771,487.20 × 159,447.60
  4. Step 4: Simplify right side
    514,324.80x = 123,011,782,470.72
  5. Step 5: Solve for x
    x = 123,011,782,470.72/514,324.80
  6. Step 6: Final answer
    x = 239,171.40

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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.