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Finding the Fourth Proportional to 451.27, 672.51 and 402.53

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Solution

The fourth proportional to 451.27, 672.51 and 402.53 is: 599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.27 : 672.51 = 402.53 : x
  2. Step 2: Convert to fraction form
    451.27/672.51 = 402.53/x
  3. Step 3: Cross multiply
    451.27x = 672.51 × 402.53
  4. Step 4: Simplify right side
    451.27x = 270,703.44
  5. Step 5: Solve for x
    x = 270,703.44/451.27
  6. Step 6: Final answer
    x = 599.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.