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Finding the Fourth Proportional to 488,002.40, 732,123.60 and 168,159.20

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Solution

The fourth proportional to 488,002.40, 732,123.60 and 168,159.20 is: 252,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,002.40 : 732,123.60 = 168,159.20 : x
  2. Step 2: Convert to fraction form
    488,002.40/732,123.60 = 168,159.20/x
  3. Step 3: Cross multiply
    488,002.40x = 732,123.60 × 168,159.20
  4. Step 4: Simplify right side
    488,002.40x = 123,113,318,877.12
  5. Step 5: Solve for x
    x = 123,113,318,877.12/488,002.40
  6. Step 6: Final answer
    x = 252,280.15

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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.