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Finding the Fourth Proportional to 159.13, 239.03 and 152.79

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Solution

The fourth proportional to 159.13, 239.03 and 152.79 is: 229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.13 : 239.03 = 152.79 : x
  2. Step 2: Convert to fraction form
    159.13/239.03 = 152.79/x
  3. Step 3: Cross multiply
    159.13x = 239.03 × 152.79
  4. Step 4: Simplify right side
    159.13x = 36,521.39
  5. Step 5: Solve for x
    x = 36,521.39/159.13
  6. Step 6: Final answer
    x = 229.51

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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.