Home / 238,764.64-329,478.96-138,177.76

Finding the Fourth Proportional to 238,764.64, 329,478.96 and 138,177.76

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Solution

The fourth proportional to 238,764.64, 329,478.96 and 138,177.76 is: 190,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,764.64 : 329,478.96 = 138,177.76 : x
  2. Step 2: Convert to fraction form
    238,764.64/329,478.96 = 138,177.76/x
  3. Step 3: Cross multiply
    238,764.64x = 329,478.96 × 138,177.76
  4. Step 4: Simplify right side
    238,764.64x = 45,526,664,659.93
  5. Step 5: Solve for x
    x = 45,526,664,659.93/238,764.64
  6. Step 6: Final answer
    x = 190,675.91

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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.