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Finding the Fourth Proportional to 175.12, 261.18 and 154.96

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Solution

The fourth proportional to 175.12, 261.18 and 154.96 is: 231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.12 : 261.18 = 154.96 : x
  2. Step 2: Convert to fraction form
    175.12/261.18 = 154.96/x
  3. Step 3: Cross multiply
    175.12x = 261.18 × 154.96
  4. Step 4: Simplify right side
    175.12x = 40,472.45
  5. Step 5: Solve for x
    x = 40,472.45/175.12
  6. Step 6: Final answer
    x = 231.11

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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.