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Finding the Fourth Proportional to 152.42, 229.10 and 134.20

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Solution

The fourth proportional to 152.42, 229.10 and 134.20 is: 201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.42 : 229.10 = 134.20 : x
  2. Step 2: Convert to fraction form
    152.42/229.10 = 134.20/x
  3. Step 3: Cross multiply
    152.42x = 229.10 × 134.20
  4. Step 4: Simplify right side
    152.42x = 30,743.98
  5. Step 5: Solve for x
    x = 30,743.98/152.42
  6. Step 6: Final answer
    x = 201.70

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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.