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Finding the Fourth Proportional to 238,902.80, 329,705.16 and 131,493.20

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Solution

The fourth proportional to 238,902.80, 329,705.16 and 131,493.20 is: 181,471.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,902.80 : 329,705.16 = 131,493.20 : x
  2. Step 2: Convert to fraction form
    238,902.80/329,705.16 = 131,493.20/x
  3. Step 3: Cross multiply
    238,902.80x = 329,705.16 × 131,493.20
  4. Step 4: Simplify right side
    238,902.80x = 43,353,986,544.91
  5. Step 5: Solve for x
    x = 43,353,986,544.91/238,902.80
  6. Step 6: Final answer
    x = 181,471.24

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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.