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Finding the Fourth Proportional to 151.52, 226 and 142.96

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Solution

The fourth proportional to 151.52, 226 and 142.96 is: 213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.52 : 226 = 142.96 : x
  2. Step 2: Convert to fraction form
    151.52/226 = 142.96/x
  3. Step 3: Cross multiply
    151.52x = 226 × 142.96
  4. Step 4: Simplify right side
    151.52x = 32,308.96
  5. Step 5: Solve for x
    x = 32,308.96/151.52
  6. Step 6: Final answer
    x = 213.23

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.