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Finding the Fourth Proportional to 488,354.91, 732,381.71 and 172,739.22

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Solution

The fourth proportional to 488,354.91, 732,381.71 and 172,739.22 is: 259,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,354.91 : 732,381.71 = 172,739.22 : x
  2. Step 2: Convert to fraction form
    488,354.91/732,381.71 = 172,739.22/x
  3. Step 3: Cross multiply
    488,354.91x = 732,381.71 × 172,739.22
  4. Step 4: Simplify right side
    488,354.91x = 126,511,044,463.97
  5. Step 5: Solve for x
    x = 126,511,044,463.97/488,354.91
  6. Step 6: Final answer
    x = 259,055.54

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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.