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Finding the Fourth Proportional to 632.34, 872.78 and 370.44

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Solution

The fourth proportional to 632.34, 872.78 and 370.44 is: 511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.34 : 872.78 = 370.44 : x
  2. Step 2: Convert to fraction form
    632.34/872.78 = 370.44/x
  3. Step 3: Cross multiply
    632.34x = 872.78 × 370.44
  4. Step 4: Simplify right side
    632.34x = 323,310.77
  5. Step 5: Solve for x
    x = 323,310.77/632.34
  6. Step 6: Final answer
    x = 511.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.