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Finding the Fourth Proportional to 151.35, 227.01 and 43.13

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Solution

The fourth proportional to 151.35, 227.01 and 43.13 is: 64.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.35 : 227.01 = 43.13 : x
  2. Step 2: Convert to fraction form
    151.35/227.01 = 43.13/x
  3. Step 3: Cross multiply
    151.35x = 227.01 × 43.13
  4. Step 4: Simplify right side
    151.35x = 9,791.35
  5. Step 5: Solve for x
    x = 9,791.35/151.35
  6. Step 6: Final answer
    x = 64.70

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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.