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Finding the Fourth Proportional to 453,503.20, 680,229.60 and 137,935.30

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Solution

The fourth proportional to 453,503.20, 680,229.60 and 137,935.30 is: 206,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,503.20 : 680,229.60 = 137,935.30 : x
  2. Step 2: Convert to fraction form
    453,503.20/680,229.60 = 137,935.30/x
  3. Step 3: Cross multiply
    453,503.20x = 680,229.60 × 137,935.30
  4. Step 4: Simplify right side
    453,503.20x = 93,827,673,944.88
  5. Step 5: Solve for x
    x = 93,827,673,944.88/453,503.20
  6. Step 6: Final answer
    x = 206,895.29

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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.