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Finding the Fourth Proportional to 373,543.72, 515,489.24 and 203,776.62

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Solution

The fourth proportional to 373,543.72, 515,489.24 and 203,776.62 is: 281,211.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,543.72 : 515,489.24 = 203,776.62 : x
  2. Step 2: Convert to fraction form
    373,543.72/515,489.24 = 203,776.62/x
  3. Step 3: Cross multiply
    373,543.72x = 515,489.24 × 203,776.62
  4. Step 4: Simplify right side
    373,543.72x = 105,044,654,973.57
  5. Step 5: Solve for x
    x = 105,044,654,973.57/373,543.72
  6. Step 6: Final answer
    x = 281,211.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.