Home / 318,832.20-478,299.87-94,215.15

Finding the Fourth Proportional to 318,832.20, 478,299.87 and 94,215.15

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Solution

The fourth proportional to 318,832.20, 478,299.87 and 94,215.15 is: 141,337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,832.20 : 478,299.87 = 94,215.15 : x
  2. Step 2: Convert to fraction form
    318,832.20/478,299.87 = 94,215.15/x
  3. Step 3: Cross multiply
    318,832.20x = 478,299.87 × 94,215.15
  4. Step 4: Simplify right side
    318,832.20x = 45,063,093,997.03
  5. Step 5: Solve for x
    x = 45,063,093,997.03/318,832.20
  6. Step 6: Final answer
    x = 141,337.96

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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.