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Finding the Fourth Proportional to 634.04, 874.92 and 372

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Solution

The fourth proportional to 634.04, 874.92 and 372 is: 513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.04 : 874.92 = 372 : x
  2. Step 2: Convert to fraction form
    634.04/874.92 = 372/x
  3. Step 3: Cross multiply
    634.04x = 874.92 × 372
  4. Step 4: Simplify right side
    634.04x = 325,470.24
  5. Step 5: Solve for x
    x = 325,470.24/634.04
  6. Step 6: Final answer
    x = 513.33

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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.