Home / 239.20-330.08-134.29

Finding the Fourth Proportional to 239.20, 330.08 and 134.29

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Solution

The fourth proportional to 239.20, 330.08 and 134.29 is: 185.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.20 : 330.08 = 134.29 : x
  2. Step 2: Convert to fraction form
    239.20/330.08 = 134.29/x
  3. Step 3: Cross multiply
    239.20x = 330.08 × 134.29
  4. Step 4: Simplify right side
    239.20x = 44,326.18
  5. Step 5: Solve for x
    x = 44,326.18/239.20
  6. Step 6: Final answer
    x = 185.31

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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.