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Finding the Fourth Proportional to 239,086.94, 329,939.94 and 131,656.71

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Solution

The fourth proportional to 239,086.94, 329,939.94 and 131,656.71 is: 181,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,086.94 : 329,939.94 = 131,656.71 : x
  2. Step 2: Convert to fraction form
    239,086.94/329,939.94 = 131,656.71/x
  3. Step 3: Cross multiply
    239,086.94x = 329,939.94 × 131,656.71
  4. Step 4: Simplify right side
    239,086.94x = 43,438,806,998.00
  5. Step 5: Solve for x
    x = 43,438,806,998.00/239,086.94
  6. Step 6: Final answer
    x = 181,686.24

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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.