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Finding the Fourth Proportional to 623.22, 932.94 and 378.96

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Solution

The fourth proportional to 623.22, 932.94 and 378.96 is: 567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.22 : 932.94 = 378.96 : x
  2. Step 2: Convert to fraction form
    623.22/932.94 = 378.96/x
  3. Step 3: Cross multiply
    623.22x = 932.94 × 378.96
  4. Step 4: Simplify right side
    623.22x = 353,546.94
  5. Step 5: Solve for x
    x = 353,546.94/623.22
  6. Step 6: Final answer
    x = 567.29

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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.