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Finding the Fourth Proportional to 625.92, 937.92 and 369.28

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Solution

The fourth proportional to 625.92, 937.92 and 369.28 is: 553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.92 : 937.92 = 369.28 : x
  2. Step 2: Convert to fraction form
    625.92/937.92 = 369.28/x
  3. Step 3: Cross multiply
    625.92x = 937.92 × 369.28
  4. Step 4: Simplify right side
    625.92x = 346,355.10
  5. Step 5: Solve for x
    x = 346,355.10/625.92
  6. Step 6: Final answer
    x = 553.35

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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.