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Finding the Fourth Proportional to 152.68, 227.92 and 147.56

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Solution

The fourth proportional to 152.68, 227.92 and 147.56 is: 220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.68 : 227.92 = 147.56 : x
  2. Step 2: Convert to fraction form
    152.68/227.92 = 147.56/x
  3. Step 3: Cross multiply
    152.68x = 227.92 × 147.56
  4. Step 4: Simplify right side
    152.68x = 33,631.88
  5. Step 5: Solve for x
    x = 33,631.88/152.68
  6. Step 6: Final answer
    x = 220.28

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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.