Home / 238,899.15-329,680.89-131,469.20

Finding the Fourth Proportional to 238,899.15, 329,680.89 and 131,469.20

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Solution

The fourth proportional to 238,899.15, 329,680.89 and 131,469.20 is: 181,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,899.15 : 329,680.89 = 131,469.20 : x
  2. Step 2: Convert to fraction form
    238,899.15/329,680.89 = 131,469.20/x
  3. Step 3: Cross multiply
    238,899.15x = 329,680.89 × 131,469.20
  4. Step 4: Simplify right side
    238,899.15x = 43,342,881,215.18
  5. Step 5: Solve for x
    x = 43,342,881,215.18/238,899.15
  6. Step 6: Final answer
    x = 181,427.52

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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.