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Finding the Fourth Proportional to 651.11, 976.10 and 614.87

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Solution

The fourth proportional to 651.11, 976.10 and 614.87 is: 921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.11 : 976.10 = 614.87 : x
  2. Step 2: Convert to fraction form
    651.11/976.10 = 614.87/x
  3. Step 3: Cross multiply
    651.11x = 976.10 × 614.87
  4. Step 4: Simplify right side
    651.11x = 600,169.73
  5. Step 5: Solve for x
    x = 600,169.73/651.11
  6. Step 6: Final answer
    x = 921.76

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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.