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Finding the Fourth Proportional to 240,614.30, 332,121.64 and 138,707.88

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Solution

The fourth proportional to 240,614.30, 332,121.64 and 138,707.88 is: 191,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,614.30 : 332,121.64 = 138,707.88 : x
  2. Step 2: Convert to fraction form
    240,614.30/332,121.64 = 138,707.88/x
  3. Step 3: Cross multiply
    240,614.30x = 332,121.64 × 138,707.88
  4. Step 4: Simplify right side
    240,614.30x = 46,067,887,644.49
  5. Step 5: Solve for x
    x = 46,067,887,644.49/240,614.30
  6. Step 6: Final answer
    x = 191,459.48

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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.