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Finding the Fourth Proportional to 472,348.60, 708,449.85 and 172,759.12

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Solution

The fourth proportional to 472,348.60, 708,449.85 and 172,759.12 is: 259,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,348.60 : 708,449.85 = 172,759.12 : x
  2. Step 2: Convert to fraction form
    472,348.60/708,449.85 = 172,759.12/x
  3. Step 3: Cross multiply
    472,348.60x = 708,449.85 × 172,759.12
  4. Step 4: Simplify right side
    472,348.60x = 122,391,172,650.13
  5. Step 5: Solve for x
    x = 122,391,172,650.13/472,348.60
  6. Step 6: Final answer
    x = 259,111.96

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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.