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Finding the Fourth Proportional to 229.53, 316.76 and 174.17

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Solution

The fourth proportional to 229.53, 316.76 and 174.17 is: 240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.53 : 316.76 = 174.17 : x
  2. Step 2: Convert to fraction form
    229.53/316.76 = 174.17/x
  3. Step 3: Cross multiply
    229.53x = 316.76 × 174.17
  4. Step 4: Simplify right side
    229.53x = 55,169.21
  5. Step 5: Solve for x
    x = 55,169.21/229.53
  6. Step 6: Final answer
    x = 240.35

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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.