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Finding the Fourth Proportional to 238,663.32, 329,273.42 and 147,986.66

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Solution

The fourth proportional to 238,663.32, 329,273.42 and 147,986.66 is: 204,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,663.32 : 329,273.42 = 147,986.66 : x
  2. Step 2: Convert to fraction form
    238,663.32/329,273.42 = 147,986.66/x
  3. Step 3: Cross multiply
    238,663.32x = 329,273.42 × 147,986.66
  4. Step 4: Simplify right side
    238,663.32x = 48,728,072,376.18
  5. Step 5: Solve for x
    x = 48,728,072,376.18/238,663.32
  6. Step 6: Final answer
    x = 204,170.76

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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.