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Finding the Fourth Proportional to 240,694.54, 332,161.96 and 138,663.70

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Solution

The fourth proportional to 240,694.54, 332,161.96 and 138,663.70 is: 191,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,694.54 : 332,161.96 = 138,663.70 : x
  2. Step 2: Convert to fraction form
    240,694.54/332,161.96 = 138,663.70/x
  3. Step 3: Cross multiply
    240,694.54x = 332,161.96 × 138,663.70
  4. Step 4: Simplify right side
    240,694.54x = 46,058,806,372.85
  5. Step 5: Solve for x
    x = 46,058,806,372.85/240,694.54
  6. Step 6: Final answer
    x = 191,357.92

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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.