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Finding the Fourth Proportional to 151,354.52, 208,869.24 and 83,371.28

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Solution

The fourth proportional to 151,354.52, 208,869.24 and 83,371.28 is: 115,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,354.52 : 208,869.24 = 83,371.28 : x
  2. Step 2: Convert to fraction form
    151,354.52/208,869.24 = 83,371.28/x
  3. Step 3: Cross multiply
    151,354.52x = 208,869.24 × 83,371.28
  4. Step 4: Simplify right side
    151,354.52x = 17,413,695,474.57
  5. Step 5: Solve for x
    x = 17,413,695,474.57/151,354.52
  6. Step 6: Final answer
    x = 115,052.37

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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.