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Finding the Fourth Proportional to 651.44, 976.85 and 377.61

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Solution

The fourth proportional to 651.44, 976.85 and 377.61 is: 566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.44 : 976.85 = 377.61 : x
  2. Step 2: Convert to fraction form
    651.44/976.85 = 377.61/x
  3. Step 3: Cross multiply
    651.44x = 976.85 × 377.61
  4. Step 4: Simplify right side
    651.44x = 368,863.44
  5. Step 5: Solve for x
    x = 368,863.44/651.44
  6. Step 6: Final answer
    x = 566.23

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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.