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Finding the Fourth Proportional to 151.81, 226.27 and 143.53

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Solution

The fourth proportional to 151.81, 226.27 and 143.53 is: 213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.81 : 226.27 = 143.53 : x
  2. Step 2: Convert to fraction form
    151.81/226.27 = 143.53/x
  3. Step 3: Cross multiply
    151.81x = 226.27 × 143.53
  4. Step 4: Simplify right side
    151.81x = 32,476.53
  5. Step 5: Solve for x
    x = 32,476.53/151.81
  6. Step 6: Final answer
    x = 213.93

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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.