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Finding the Fourth Proportional to 187,481.79, 280,940.81 and 75,050.55

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Solution

The fourth proportional to 187,481.79, 280,940.81 and 75,050.55 is: 112,462.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,481.79 : 280,940.81 = 75,050.55 : x
  2. Step 2: Convert to fraction form
    187,481.79/280,940.81 = 75,050.55/x
  3. Step 3: Cross multiply
    187,481.79x = 280,940.81 × 75,050.55
  4. Step 4: Simplify right side
    187,481.79x = 21,084,761,932.69
  5. Step 5: Solve for x
    x = 21,084,761,932.69/187,481.79
  6. Step 6: Final answer
    x = 112,462.99

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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.