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Finding the Fourth Proportional to 649.57, 974.36 and 162.62

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Solution

The fourth proportional to 649.57, 974.36 and 162.62 is: 243.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.57 : 974.36 = 162.62 : x
  2. Step 2: Convert to fraction form
    649.57/974.36 = 162.62/x
  3. Step 3: Cross multiply
    649.57x = 974.36 × 162.62
  4. Step 4: Simplify right side
    649.57x = 158,450.42
  5. Step 5: Solve for x
    x = 158,450.42/649.57
  6. Step 6: Final answer
    x = 243.93

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Similar ratio
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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.