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Finding the Fourth Proportional to 363,630.67, 501,553.22 and 315,144.88

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Solution

The fourth proportional to 363,630.67, 501,553.22 and 315,144.88 is: 434,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,630.67 : 501,553.22 = 315,144.88 : x
  2. Step 2: Convert to fraction form
    363,630.67/501,553.22 = 315,144.88/x
  3. Step 3: Cross multiply
    363,630.67x = 501,553.22 × 315,144.88
  4. Step 4: Simplify right side
    363,630.67x = 158,061,926,500.91
  5. Step 5: Solve for x
    x = 158,061,926,500.91/363,630.67
  6. Step 6: Final answer
    x = 434,677.11

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1.5x scale

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.