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Finding the Fourth Proportional to 495.94, 743.72 and 171.22

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Solution

The fourth proportional to 495.94, 743.72 and 171.22 is: 256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.94 : 743.72 = 171.22 : x
  2. Step 2: Convert to fraction form
    495.94/743.72 = 171.22/x
  3. Step 3: Cross multiply
    495.94x = 743.72 × 171.22
  4. Step 4: Simplify right side
    495.94x = 127,339.74
  5. Step 5: Solve for x
    x = 127,339.74/495.94
  6. Step 6: Final answer
    x = 256.76

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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.