Home / 239.14-330.12-180.15

Finding the Fourth Proportional to 239.14, 330.12 and 180.15

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Solution

The fourth proportional to 239.14, 330.12 and 180.15 is: 248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.14 : 330.12 = 180.15 : x
  2. Step 2: Convert to fraction form
    239.14/330.12 = 180.15/x
  3. Step 3: Cross multiply
    239.14x = 330.12 × 180.15
  4. Step 4: Simplify right side
    239.14x = 59,471.12
  5. Step 5: Solve for x
    x = 59,471.12/239.14
  6. Step 6: Final answer
    x = 248.69

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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.