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Finding the Fourth Proportional to 495.67, 743.57 and 170.96

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Solution

The fourth proportional to 495.67, 743.57 and 170.96 is: 256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.67 : 743.57 = 170.96 : x
  2. Step 2: Convert to fraction form
    495.67/743.57 = 170.96/x
  3. Step 3: Cross multiply
    495.67x = 743.57 × 170.96
  4. Step 4: Simplify right side
    495.67x = 127,117.01
  5. Step 5: Solve for x
    x = 127,117.01/495.67
  6. Step 6: Final answer
    x = 256.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.