Home / 238,577.91-329,229.16-131,147.18

Finding the Fourth Proportional to 238,577.91, 329,229.16 and 131,147.18

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Solution

The fourth proportional to 238,577.91, 329,229.16 and 131,147.18 is: 180,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,577.91 : 329,229.16 = 131,147.18 : x
  2. Step 2: Convert to fraction form
    238,577.91/329,229.16 = 131,147.18/x
  3. Step 3: Cross multiply
    238,577.91x = 329,229.16 × 131,147.18
  4. Step 4: Simplify right side
    238,577.91x = 43,177,473,605.89
  5. Step 5: Solve for x
    x = 43,177,473,605.89/238,577.91
  6. Step 6: Final answer
    x = 180,978.51

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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.