Home / 438,999.14-658,046.73-172,651.70

Finding the Fourth Proportional to 438,999.14, 658,046.73 and 172,651.70

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Solution

The fourth proportional to 438,999.14, 658,046.73 and 172,651.70 is: 258,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,999.14 : 658,046.73 = 172,651.70 : x
  2. Step 2: Convert to fraction form
    438,999.14/658,046.73 = 172,651.70/x
  3. Step 3: Cross multiply
    438,999.14x = 658,046.73 × 172,651.70
  4. Step 4: Simplify right side
    438,999.14x = 113,612,886,613.94
  5. Step 5: Solve for x
    x = 113,612,886,613.94/438,999.14
  6. Step 6: Final answer
    x = 258,799.79

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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.