Home / 318,876.33-478,373.36-131,902.41

Finding the Fourth Proportional to 318,876.33, 478,373.36 and 131,902.41

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Solution

The fourth proportional to 318,876.33, 478,373.36 and 131,902.41 is: 197,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,876.33 : 478,373.36 = 131,902.41 : x
  2. Step 2: Convert to fraction form
    318,876.33/478,373.36 = 131,902.41/x
  3. Step 3: Cross multiply
    318,876.33x = 478,373.36 × 131,902.41
  4. Step 4: Simplify right side
    318,876.33x = 63,098,598,404.29
  5. Step 5: Solve for x
    x = 63,098,598,404.29/318,876.33
  6. Step 6: Final answer
    x = 197,877.96

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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.