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Finding the Fourth Proportional to 239,065.26, 329,917.31 and 131,639.14

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Solution

The fourth proportional to 239,065.26, 329,917.31 and 131,639.14 is: 181,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,065.26 : 329,917.31 = 131,639.14 : x
  2. Step 2: Convert to fraction form
    239,065.26/329,917.31 = 131,639.14/x
  3. Step 3: Cross multiply
    239,065.26x = 329,917.31 × 131,639.14
  4. Step 4: Simplify right side
    239,065.26x = 43,430,030,463.82
  5. Step 5: Solve for x
    x = 43,430,030,463.82/239,065.26
  6. Step 6: Final answer
    x = 181,666.00

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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.