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Finding the Fourth Proportional to 239,141.84, 330,015.72 and 131,710.96

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Solution

The fourth proportional to 239,141.84, 330,015.72 and 131,710.96 is: 181,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,141.84 : 330,015.72 = 131,710.96 : x
  2. Step 2: Convert to fraction form
    239,141.84/330,015.72 = 131,710.96/x
  3. Step 3: Cross multiply
    239,141.84x = 330,015.72 × 131,710.96
  4. Step 4: Simplify right side
    239,141.84x = 43,466,687,296.29
  5. Step 5: Solve for x
    x = 43,466,687,296.29/239,141.84
  6. Step 6: Final answer
    x = 181,761.11

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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.