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Finding the Fourth Proportional to 212.97, 294.04 and 166.53

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Solution

The fourth proportional to 212.97, 294.04 and 166.53 is: 229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.97 : 294.04 = 166.53 : x
  2. Step 2: Convert to fraction form
    212.97/294.04 = 166.53/x
  3. Step 3: Cross multiply
    212.97x = 294.04 × 166.53
  4. Step 4: Simplify right side
    212.97x = 48,966.48
  5. Step 5: Solve for x
    x = 48,966.48/212.97
  6. Step 6: Final answer
    x = 229.92

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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.