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Finding the Fourth Proportional to 229.49, 344.27 and 148.69

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Solution

The fourth proportional to 229.49, 344.27 and 148.69 is: 223.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.49 : 344.27 = 148.69 : x
  2. Step 2: Convert to fraction form
    229.49/344.27 = 148.69/x
  3. Step 3: Cross multiply
    229.49x = 344.27 × 148.69
  4. Step 4: Simplify right side
    229.49x = 51,188.76
  5. Step 5: Solve for x
    x = 51,188.76/229.49
  6. Step 6: Final answer
    x = 223.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.