Home / 238,705.89-329,407.55-131,275.91

Finding the Fourth Proportional to 238,705.89, 329,407.55 and 131,275.91

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Solution

The fourth proportional to 238,705.89, 329,407.55 and 131,275.91 is: 181,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,705.89 : 329,407.55 = 131,275.91 : x
  2. Step 2: Convert to fraction form
    238,705.89/329,407.55 = 131,275.91/x
  3. Step 3: Cross multiply
    238,705.89x = 329,407.55 × 131,275.91
  4. Step 4: Simplify right side
    238,705.89x = 43,243,273,583.70
  5. Step 5: Solve for x
    x = 43,243,273,583.70/238,705.89
  6. Step 6: Final answer
    x = 181,157.13

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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.