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Finding the Fourth Proportional to 204.16, 306.02 and 88.56

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Solution

The fourth proportional to 204.16, 306.02 and 88.56 is: 132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.16 : 306.02 = 88.56 : x
  2. Step 2: Convert to fraction form
    204.16/306.02 = 88.56/x
  3. Step 3: Cross multiply
    204.16x = 306.02 × 88.56
  4. Step 4: Simplify right side
    204.16x = 27,101.13
  5. Step 5: Solve for x
    x = 27,101.13/204.16
  6. Step 6: Final answer
    x = 132.74

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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.