Home / 240,529.06-331,965.31-138,534.91

Finding the Fourth Proportional to 240,529.06, 331,965.31 and 138,534.91

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Solution

The fourth proportional to 240,529.06, 331,965.31 and 138,534.91 is: 191,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,529.06 : 331,965.31 = 138,534.91 : x
  2. Step 2: Convert to fraction form
    240,529.06/331,965.31 = 138,534.91/x
  3. Step 3: Cross multiply
    240,529.06x = 331,965.31 × 138,534.91
  4. Step 4: Simplify right side
    240,529.06x = 45,988,784,343.97
  5. Step 5: Solve for x
    x = 45,988,784,343.97/240,529.06
  6. Step 6: Final answer
    x = 191,198.45

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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.