Home / 238,819.20-329,557.40-131,371.76

Finding the Fourth Proportional to 238,819.20, 329,557.40 and 131,371.76

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Solution

The fourth proportional to 238,819.20, 329,557.40 and 131,371.76 is: 181,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,819.20 : 329,557.40 = 131,371.76 : x
  2. Step 2: Convert to fraction form
    238,819.20/329,557.40 = 131,371.76/x
  3. Step 3: Cross multiply
    238,819.20x = 329,557.40 × 131,371.76
  4. Step 4: Simplify right side
    238,819.20x = 43,294,535,659.02
  5. Step 5: Solve for x
    x = 43,294,535,659.02/238,819.20
  6. Step 6: Final answer
    x = 181,285.82

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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.