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Finding the Fourth Proportional to 101,280.78, 151,927.65 and 38,951.28

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Solution

The fourth proportional to 101,280.78, 151,927.65 and 38,951.28 is: 58,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280.78 : 151,927.65 = 38,951.28 : x
  2. Step 2: Convert to fraction form
    101,280.78/151,927.65 = 38,951.28/x
  3. Step 3: Cross multiply
    101,280.78x = 151,927.65 × 38,951.28
  4. Step 4: Simplify right side
    101,280.78x = 5,917,776,434.89
  5. Step 5: Solve for x
    x = 5,917,776,434.89/101,280.78
  6. Step 6: Final answer
    x = 58,429.41

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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.