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Finding the Fourth Proportional to 223,972.59, 309,082.20 and 123,370.59

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Solution

The fourth proportional to 223,972.59, 309,082.20 and 123,370.59 is: 170,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,972.59 : 309,082.20 = 123,370.59 : x
  2. Step 2: Convert to fraction form
    223,972.59/309,082.20 = 123,370.59/x
  3. Step 3: Cross multiply
    223,972.59x = 309,082.20 × 123,370.59
  4. Step 4: Simplify right side
    223,972.59x = 38,131,654,068.92
  5. Step 5: Solve for x
    x = 38,131,654,068.92/223,972.59
  6. Step 6: Final answer
    x = 170,251.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.