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Finding the Fourth Proportional to 438,523.96, 657,785.96 and 106,099.96

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Solution

The fourth proportional to 438,523.96, 657,785.96 and 106,099.96 is: 159,149.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,523.96 : 657,785.96 = 106,099.96 : x
  2. Step 2: Convert to fraction form
    438,523.96/657,785.96 = 106,099.96/x
  3. Step 3: Cross multiply
    438,523.96x = 657,785.96 × 106,099.96
  4. Step 4: Simplify right side
    438,523.96x = 69,791,062,665.35
  5. Step 5: Solve for x
    x = 69,791,062,665.35/438,523.96
  6. Step 6: Final answer
    x = 159,149.94

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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.