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Finding the Fourth Proportional to 495.42, 743.10 and 171.02

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Solution

The fourth proportional to 495.42, 743.10 and 171.02 is: 256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.42 : 743.10 = 171.02 : x
  2. Step 2: Convert to fraction form
    495.42/743.10 = 171.02/x
  3. Step 3: Cross multiply
    495.42x = 743.10 × 171.02
  4. Step 4: Simplify right side
    495.42x = 127,081.25
  5. Step 5: Solve for x
    x = 127,081.25/495.42
  6. Step 6: Final answer
    x = 256.51

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Double scale
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Similar ratio
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1.5x scale

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.