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Finding the Fourth Proportional to 460.88, 691.11 and 200.87

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Solution

The fourth proportional to 460.88, 691.11 and 200.87 is: 301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.88 : 691.11 = 200.87 : x
  2. Step 2: Convert to fraction form
    460.88/691.11 = 200.87/x
  3. Step 3: Cross multiply
    460.88x = 691.11 × 200.87
  4. Step 4: Simplify right side
    460.88x = 138,823.27
  5. Step 5: Solve for x
    x = 138,823.27/460.88
  6. Step 6: Final answer
    x = 301.21

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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.