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Finding the Fourth Proportional to 154.03, 232.20 and 144.11

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Solution

The fourth proportional to 154.03, 232.20 and 144.11 is: 217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.03 : 232.20 = 144.11 : x
  2. Step 2: Convert to fraction form
    154.03/232.20 = 144.11/x
  3. Step 3: Cross multiply
    154.03x = 232.20 × 144.11
  4. Step 4: Simplify right side
    154.03x = 33,461.98
  5. Step 5: Solve for x
    x = 33,461.98/154.03
  6. Step 6: Final answer
    x = 217.24

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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.