Home / 266,579.28-399,402.36-155,538

Finding the Fourth Proportional to 266,579.28, 399,402.36 and 155,538

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Solution

The fourth proportional to 266,579.28, 399,402.36 and 155,538 is: 233,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,579.28 : 399,402.36 = 155,538 : x
  2. Step 2: Convert to fraction form
    266,579.28/399,402.36 = 155,538/x
  3. Step 3: Cross multiply
    266,579.28x = 399,402.36 × 155,538
  4. Step 4: Simplify right side
    266,579.28x = 62,122,244,269.68
  5. Step 5: Solve for x
    x = 62,122,244,269.68/266,579.28
  6. Step 6: Final answer
    x = 233,034.78

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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.