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Finding the Fourth Proportional to 285,337.98, 428,010.66 and 135,592.92

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Solution

The fourth proportional to 285,337.98, 428,010.66 and 135,592.92 is: 203,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,337.98 : 428,010.66 = 135,592.92 : x
  2. Step 2: Convert to fraction form
    285,337.98/428,010.66 = 135,592.92/x
  3. Step 3: Cross multiply
    285,337.98x = 428,010.66 × 135,592.92
  4. Step 4: Simplify right side
    285,337.98x = 58,035,215,180.53
  5. Step 5: Solve for x
    x = 58,035,215,180.53/285,337.98
  6. Step 6: Final answer
    x = 203,391.13

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1.5x scale

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.