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Finding the Fourth Proportional to 488,059.20, 732,111.48 and 172,548

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Solution

The fourth proportional to 488,059.20, 732,111.48 and 172,548 is: 258,830.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,059.20 : 732,111.48 = 172,548 : x
  2. Step 2: Convert to fraction form
    488,059.20/732,111.48 = 172,548/x
  3. Step 3: Cross multiply
    488,059.20x = 732,111.48 × 172,548
  4. Step 4: Simplify right side
    488,059.20x = 126,324,371,651.04
  5. Step 5: Solve for x
    x = 126,324,371,651.04/488,059.20
  6. Step 6: Final answer
    x = 258,830.02

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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.