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Finding the Fourth Proportional to 240.90, 332.24 and 171.04

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Solution

The fourth proportional to 240.90, 332.24 and 171.04 is: 235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.90 : 332.24 = 171.04 : x
  2. Step 2: Convert to fraction form
    240.90/332.24 = 171.04/x
  3. Step 3: Cross multiply
    240.90x = 332.24 × 171.04
  4. Step 4: Simplify right side
    240.90x = 56,826.33
  5. Step 5: Solve for x
    x = 56,826.33/240.90
  6. Step 6: Final answer
    x = 235.89

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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.