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Finding the Fourth Proportional to 221,717.48, 332,751.18 and 103,327.88

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Solution

The fourth proportional to 221,717.48, 332,751.18 and 103,327.88 is: 155,073.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,717.48 : 332,751.18 = 103,327.88 : x
  2. Step 2: Convert to fraction form
    221,717.48/332,751.18 = 103,327.88/x
  3. Step 3: Cross multiply
    221,717.48x = 332,751.18 × 103,327.88
  4. Step 4: Simplify right side
    221,717.48x = 34,382,473,996.90
  5. Step 5: Solve for x
    x = 34,382,473,996.90/221,717.48
  6. Step 6: Final answer
    x = 155,073.36

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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.