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Finding the Fourth Proportional to 152.05, 227.77 and 129.27

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Solution

The fourth proportional to 152.05, 227.77 and 129.27 is: 193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.05 : 227.77 = 129.27 : x
  2. Step 2: Convert to fraction form
    152.05/227.77 = 129.27/x
  3. Step 3: Cross multiply
    152.05x = 227.77 × 129.27
  4. Step 4: Simplify right side
    152.05x = 29,443.83
  5. Step 5: Solve for x
    x = 29,443.83/152.05
  6. Step 6: Final answer
    x = 193.65

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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.