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Finding the Fourth Proportional to 154.79, 230.54 and 152.97

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Solution

The fourth proportional to 154.79, 230.54 and 152.97 is: 227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.79 : 230.54 = 152.97 : x
  2. Step 2: Convert to fraction form
    154.79/230.54 = 152.97/x
  3. Step 3: Cross multiply
    154.79x = 230.54 × 152.97
  4. Step 4: Simplify right side
    154.79x = 35,265.80
  5. Step 5: Solve for x
    x = 35,265.80/154.79
  6. Step 6: Final answer
    x = 227.82

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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.