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Finding the Fourth Proportional to 542,505.59, 813,792.22 and 143,146.76

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Solution

The fourth proportional to 542,505.59, 813,792.22 and 143,146.76 is: 214,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,505.59 : 813,792.22 = 143,146.76 : x
  2. Step 2: Convert to fraction form
    542,505.59/813,792.22 = 143,146.76/x
  3. Step 3: Cross multiply
    542,505.59x = 813,792.22 × 143,146.76
  4. Step 4: Simplify right side
    542,505.59x = 116,491,719,606.21
  5. Step 5: Solve for x
    x = 116,491,719,606.21/542,505.59
  6. Step 6: Final answer
    x = 214,729.07

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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.