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Finding the Fourth Proportional to 636,912.52, 955,376.98 and 187,531.20

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Solution

The fourth proportional to 636,912.52, 955,376.98 and 187,531.20 is: 281,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,912.52 : 955,376.98 = 187,531.20 : x
  2. Step 2: Convert to fraction form
    636,912.52/955,376.98 = 187,531.20/x
  3. Step 3: Cross multiply
    636,912.52x = 955,376.98 × 187,531.20
  4. Step 4: Simplify right side
    636,912.52x = 179,162,991,042.95
  5. Step 5: Solve for x
    x = 179,162,991,042.95/636,912.52
  6. Step 6: Final answer
    x = 281,299.21

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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.