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Finding the Fourth Proportional to 220,592.98, 330,998.82 and 87,470.38

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Solution

The fourth proportional to 220,592.98, 330,998.82 and 87,470.38 is: 131,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,592.98 : 330,998.82 = 87,470.38 : x
  2. Step 2: Convert to fraction form
    220,592.98/330,998.82 = 87,470.38/x
  3. Step 3: Cross multiply
    220,592.98x = 330,998.82 × 87,470.38
  4. Step 4: Simplify right side
    220,592.98x = 28,952,592,564.95
  5. Step 5: Solve for x
    x = 28,952,592,564.95/220,592.98
  6. Step 6: Final answer
    x = 131,248.93

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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.