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Finding the Fourth Proportional to 152.81, 227.76 and 144.53

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Solution

The fourth proportional to 152.81, 227.76 and 144.53 is: 215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.81 : 227.76 = 144.53 : x
  2. Step 2: Convert to fraction form
    152.81/227.76 = 144.53/x
  3. Step 3: Cross multiply
    152.81x = 227.76 × 144.53
  4. Step 4: Simplify right side
    152.81x = 32,918.15
  5. Step 5: Solve for x
    x = 32,918.15/152.81
  6. Step 6: Final answer
    x = 215.42

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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.