Home / 438,812.16-658,115.52-123,299.20

Finding the Fourth Proportional to 438,812.16, 658,115.52 and 123,299.20

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Solution

The fourth proportional to 438,812.16, 658,115.52 and 123,299.20 is: 184,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,812.16 : 658,115.52 = 123,299.20 : x
  2. Step 2: Convert to fraction form
    438,812.16/658,115.52 = 123,299.20/x
  3. Step 3: Cross multiply
    438,812.16x = 658,115.52 × 123,299.20
  4. Step 4: Simplify right side
    438,812.16x = 81,145,117,123.58
  5. Step 5: Solve for x
    x = 81,145,117,123.58/438,812.16
  6. Step 6: Final answer
    x = 184,919.94

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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.