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Finding the Fourth Proportional to 632.43, 872.91 and 370.53

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Solution

The fourth proportional to 632.43, 872.91 and 370.53 is: 511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.43 : 872.91 = 370.53 : x
  2. Step 2: Convert to fraction form
    632.43/872.91 = 370.53/x
  3. Step 3: Cross multiply
    632.43x = 872.91 × 370.53
  4. Step 4: Simplify right side
    632.43x = 323,439.34
  5. Step 5: Solve for x
    x = 323,439.34/632.43
  6. Step 6: Final answer
    x = 511.42

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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.