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Finding the Fourth Proportional to 247,201.47, 341,128.57 and 139,773.75

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Solution

The fourth proportional to 247,201.47, 341,128.57 and 139,773.75 is: 192,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.47 : 341,128.57 = 139,773.75 : x
  2. Step 2: Convert to fraction form
    247,201.47/341,128.57 = 139,773.75/x
  3. Step 3: Cross multiply
    247,201.47x = 341,128.57 × 139,773.75
  4. Step 4: Simplify right side
    247,201.47x = 47,680,819,461.04
  5. Step 5: Solve for x
    x = 47,680,819,461.04/247,201.47
  6. Step 6: Final answer
    x = 192,882.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.