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Finding the Fourth Proportional to 451.08, 672.15 and 402.62

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Solution

The fourth proportional to 451.08, 672.15 and 402.62 is: 599.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.08 : 672.15 = 402.62 : x
  2. Step 2: Convert to fraction form
    451.08/672.15 = 402.62/x
  3. Step 3: Cross multiply
    451.08x = 672.15 × 402.62
  4. Step 4: Simplify right side
    451.08x = 270,617.67
  5. Step 5: Solve for x
    x = 270,617.67/451.08
  6. Step 6: Final answer
    x = 599.93

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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.