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Finding the Fourth Proportional to 154.53, 232.85 and 148.35

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Solution

The fourth proportional to 154.53, 232.85 and 148.35 is: 223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.53 : 232.85 = 148.35 : x
  2. Step 2: Convert to fraction form
    154.53/232.85 = 148.35/x
  3. Step 3: Cross multiply
    154.53x = 232.85 × 148.35
  4. Step 4: Simplify right side
    154.53x = 34,542.56
  5. Step 5: Solve for x
    x = 34,542.56/154.53
  6. Step 6: Final answer
    x = 223.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.