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Finding the Fourth Proportional to 488,016.60, 732,024.90 and 172,505.40

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Solution

The fourth proportional to 488,016.60, 732,024.90 and 172,505.40 is: 258,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,016.60 : 732,024.90 = 172,505.40 : x
  2. Step 2: Convert to fraction form
    488,016.60/732,024.90 = 172,505.40/x
  3. Step 3: Cross multiply
    488,016.60x = 732,024.90 × 172,505.40
  4. Step 4: Simplify right side
    488,016.60x = 126,278,248,184.46
  5. Step 5: Solve for x
    x = 126,278,248,184.46/488,016.60
  6. Step 6: Final answer
    x = 258,758.10

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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.