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Finding the Fourth Proportional to 229.33, 341.87 and 220.12

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Solution

The fourth proportional to 229.33, 341.87 and 220.12 is: 328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.33 : 341.87 = 220.12 : x
  2. Step 2: Convert to fraction form
    229.33/341.87 = 220.12/x
  3. Step 3: Cross multiply
    229.33x = 341.87 × 220.12
  4. Step 4: Simplify right side
    229.33x = 75,251.71
  5. Step 5: Solve for x
    x = 75,251.71/229.33
  6. Step 6: Final answer
    x = 328.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.