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Finding the Fourth Proportional to 154, 229.28 and 152.18

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Solution

The fourth proportional to 154, 229.28 and 152.18 is: 226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154 : 229.28 = 152.18 : x
  2. Step 2: Convert to fraction form
    154/229.28 = 152.18/x
  3. Step 3: Cross multiply
    154x = 229.28 × 152.18
  4. Step 4: Simplify right side
    154x = 34,891.83
  5. Step 5: Solve for x
    x = 34,891.83/154
  6. Step 6: Final answer
    x = 226.57

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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.