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Finding the Fourth Proportional to 238,891.92, 329,672.40 and 131,458.92

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Solution

The fourth proportional to 238,891.92, 329,672.40 and 131,458.92 is: 181,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,891.92 : 329,672.40 = 131,458.92 : x
  2. Step 2: Convert to fraction form
    238,891.92/329,672.40 = 131,458.92/x
  3. Step 3: Cross multiply
    238,891.92x = 329,672.40 × 131,458.92
  4. Step 4: Simplify right side
    238,891.92x = 43,338,377,657.81
  5. Step 5: Solve for x
    x = 43,338,377,657.81/238,891.92
  6. Step 6: Final answer
    x = 181,414.16

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1.5x scale

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.