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Finding the Fourth Proportional to 622.44, 932.40 and 292.88

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Solution

The fourth proportional to 622.44, 932.40 and 292.88 is: 438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.44 : 932.40 = 292.88 : x
  2. Step 2: Convert to fraction form
    622.44/932.40 = 292.88/x
  3. Step 3: Cross multiply
    622.44x = 932.40 × 292.88
  4. Step 4: Simplify right side
    622.44x = 273,081.31
  5. Step 5: Solve for x
    x = 273,081.31/622.44
  6. Step 6: Final answer
    x = 438.73

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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.