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Finding the Fourth Proportional to 632.72, 949.14 and 324.44

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Solution

The fourth proportional to 632.72, 949.14 and 324.44 is: 486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.72 : 949.14 = 324.44 : x
  2. Step 2: Convert to fraction form
    632.72/949.14 = 324.44/x
  3. Step 3: Cross multiply
    632.72x = 949.14 × 324.44
  4. Step 4: Simplify right side
    632.72x = 307,938.98
  5. Step 5: Solve for x
    x = 307,938.98/632.72
  6. Step 6: Final answer
    x = 486.69

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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.