Home / 238,708.38-329,410.98-131,278.40

Finding the Fourth Proportional to 238,708.38, 329,410.98 and 131,278.40

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Solution

The fourth proportional to 238,708.38, 329,410.98 and 131,278.40 is: 181,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,708.38 : 329,410.98 = 131,278.40 : x
  2. Step 2: Convert to fraction form
    238,708.38/329,410.98 = 131,278.40/x
  3. Step 3: Cross multiply
    238,708.38x = 329,410.98 × 131,278.40
  4. Step 4: Simplify right side
    238,708.38x = 43,244,546,396.83
  5. Step 5: Solve for x
    x = 43,244,546,396.83/238,708.38
  6. Step 6: Final answer
    x = 181,160.57

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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.