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Finding the Fourth Proportional to 630.33, 945.57 and 265.22

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Solution

The fourth proportional to 630.33, 945.57 and 265.22 is: 397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.33 : 945.57 = 265.22 : x
  2. Step 2: Convert to fraction form
    630.33/945.57 = 265.22/x
  3. Step 3: Cross multiply
    630.33x = 945.57 × 265.22
  4. Step 4: Simplify right side
    630.33x = 250,789.21
  5. Step 5: Solve for x
    x = 250,789.21/630.33
  6. Step 6: Final answer
    x = 397.87

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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.