Home / 240,528.82-331,964.97-138,534.66

Finding the Fourth Proportional to 240,528.82, 331,964.97 and 138,534.66

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Solution

The fourth proportional to 240,528.82, 331,964.97 and 138,534.66 is: 191,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,528.82 : 331,964.97 = 138,534.66 : x
  2. Step 2: Convert to fraction form
    240,528.82/331,964.97 = 138,534.66/x
  3. Step 3: Cross multiply
    240,528.82x = 331,964.97 × 138,534.66
  4. Step 4: Simplify right side
    240,528.82x = 45,988,654,250.86
  5. Step 5: Solve for x
    x = 45,988,654,250.86/240,528.82
  6. Step 6: Final answer
    x = 191,198.11

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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.