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Finding the Fourth Proportional to 238,608, 329,270.65 and 131,177.25

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Solution

The fourth proportional to 238,608, 329,270.65 and 131,177.25 is: 181,019.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,608 : 329,270.65 = 131,177.25 : x
  2. Step 2: Convert to fraction form
    238,608/329,270.65 = 131,177.25/x
  3. Step 3: Cross multiply
    238,608x = 329,270.65 × 131,177.25
  4. Step 4: Simplify right side
    238,608x = 43,192,818,372.71
  5. Step 5: Solve for x
    x = 43,192,818,372.71/238,608
  6. Step 6: Final answer
    x = 181,019.99

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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.