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Finding the Fourth Proportional to 229.89, 316.80 and 207.52

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Solution

The fourth proportional to 229.89, 316.80 and 207.52 is: 285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.89 : 316.80 = 207.52 : x
  2. Step 2: Convert to fraction form
    229.89/316.80 = 207.52/x
  3. Step 3: Cross multiply
    229.89x = 316.80 × 207.52
  4. Step 4: Simplify right side
    229.89x = 65,742.34
  5. Step 5: Solve for x
    x = 65,742.34/229.89
  6. Step 6: Final answer
    x = 285.97

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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.