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Finding the Fourth Proportional to 239,939.47, 360,127.31 and 127,713.56

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Solution

The fourth proportional to 239,939.47, 360,127.31 and 127,713.56 is: 191,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,939.47 : 360,127.31 = 127,713.56 : x
  2. Step 2: Convert to fraction form
    239,939.47/360,127.31 = 127,713.56/x
  3. Step 3: Cross multiply
    239,939.47x = 360,127.31 × 127,713.56
  4. Step 4: Simplify right side
    239,939.47x = 45,993,141,132.61
  5. Step 5: Solve for x
    x = 45,993,141,132.61/239,939.47
  6. Step 6: Final answer
    x = 191,686.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.