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Finding the Fourth Proportional to 238,991.62, 329,805.76 and 131,559.28

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Solution

The fourth proportional to 238,991.62, 329,805.76 and 131,559.28 is: 181,550.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,991.62 : 329,805.76 = 131,559.28 : x
  2. Step 2: Convert to fraction form
    238,991.62/329,805.76 = 131,559.28/x
  3. Step 3: Cross multiply
    238,991.62x = 329,805.76 × 131,559.28
  4. Step 4: Simplify right side
    238,991.62x = 43,389,008,325.45
  5. Step 5: Solve for x
    x = 43,389,008,325.45/238,991.62
  6. Step 6: Final answer
    x = 181,550.33

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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.