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Finding the Fourth Proportional to 159.55, 239.10 and 63.25

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Solution

The fourth proportional to 159.55, 239.10 and 63.25 is: 94.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.55 : 239.10 = 63.25 : x
  2. Step 2: Convert to fraction form
    159.55/239.10 = 63.25/x
  3. Step 3: Cross multiply
    159.55x = 239.10 × 63.25
  4. Step 4: Simplify right side
    159.55x = 15,123.08
  5. Step 5: Solve for x
    x = 15,123.08/159.55
  6. Step 6: Final answer
    x = 94.79

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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.