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Finding the Fourth Proportional to 230.24, 316.68 and 180.56

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Solution

The fourth proportional to 230.24, 316.68 and 180.56 is: 248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.24 : 316.68 = 180.56 : x
  2. Step 2: Convert to fraction form
    230.24/316.68 = 180.56/x
  3. Step 3: Cross multiply
    230.24x = 316.68 × 180.56
  4. Step 4: Simplify right side
    230.24x = 57,179.74
  5. Step 5: Solve for x
    x = 57,179.74/230.24
  6. Step 6: Final answer
    x = 248.35

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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.