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Finding the Fourth Proportional to 247,389.64, 370,789.22 and 135,098.12

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Solution

The fourth proportional to 247,389.64, 370,789.22 and 135,098.12 is: 202,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,389.64 : 370,789.22 = 135,098.12 : x
  2. Step 2: Convert to fraction form
    247,389.64/370,789.22 = 135,098.12/x
  3. Step 3: Cross multiply
    247,389.64x = 370,789.22 × 135,098.12
  4. Step 4: Simplify right side
    247,389.64x = 50,092,926,538.27
  5. Step 5: Solve for x
    x = 50,092,926,538.27/247,389.64
  6. Step 6: Final answer
    x = 202,485.95

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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.