Home / 238,974.72-329,766.96-136,999.20

Finding the Fourth Proportional to 238,974.72, 329,766.96 and 136,999.20

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Solution

The fourth proportional to 238,974.72, 329,766.96 and 136,999.20 is: 189,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,974.72 : 329,766.96 = 136,999.20 : x
  2. Step 2: Convert to fraction form
    238,974.72/329,766.96 = 136,999.20/x
  3. Step 3: Cross multiply
    238,974.72x = 329,766.96 × 136,999.20
  4. Step 4: Simplify right side
    238,974.72x = 45,177,809,706.43
  5. Step 5: Solve for x
    x = 45,177,809,706.43/238,974.72
  6. Step 6: Final answer
    x = 189,048.49

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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.