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Finding the Fourth Proportional to 204.16, 281.62 and 125.51

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Solution

The fourth proportional to 204.16, 281.62 and 125.51 is: 173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.16 : 281.62 = 125.51 : x
  2. Step 2: Convert to fraction form
    204.16/281.62 = 125.51/x
  3. Step 3: Cross multiply
    204.16x = 281.62 × 125.51
  4. Step 4: Simplify right side
    204.16x = 35,346.13
  5. Step 5: Solve for x
    x = 35,346.13/204.16
  6. Step 6: Final answer
    x = 173.13

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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.