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Finding the Fourth Proportional to 174.56, 240.85 and 151.43

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Solution

The fourth proportional to 174.56, 240.85 and 151.43 is: 208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.56 : 240.85 = 151.43 : x
  2. Step 2: Convert to fraction form
    174.56/240.85 = 151.43/x
  3. Step 3: Cross multiply
    174.56x = 240.85 × 151.43
  4. Step 4: Simplify right side
    174.56x = 36,470.90
  5. Step 5: Solve for x
    x = 36,470.90/174.56
  6. Step 6: Final answer
    x = 208.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.