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Finding the Fourth Proportional to 621.94, 932.98 and 292.71

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Solution

The fourth proportional to 621.94, 932.98 and 292.71 is: 439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.94 : 932.98 = 292.71 : x
  2. Step 2: Convert to fraction form
    621.94/932.98 = 292.71/x
  3. Step 3: Cross multiply
    621.94x = 932.98 × 292.71
  4. Step 4: Simplify right side
    621.94x = 273,092.58
  5. Step 5: Solve for x
    x = 273,092.58/621.94
  6. Step 6: Final answer
    x = 439.10

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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.