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Finding the Fourth Proportional to 630.27, 945.36 and 197.42

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Solution

The fourth proportional to 630.27, 945.36 and 197.42 is: 296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.27 : 945.36 = 197.42 : x
  2. Step 2: Convert to fraction form
    630.27/945.36 = 197.42/x
  3. Step 3: Cross multiply
    630.27x = 945.36 × 197.42
  4. Step 4: Simplify right side
    630.27x = 186,632.97
  5. Step 5: Solve for x
    x = 186,632.97/630.27
  6. Step 6: Final answer
    x = 296.12

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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.