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Finding the Fourth Proportional to 625.45, 937.87 and 365.53

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Solution

The fourth proportional to 625.45, 937.87 and 365.53 is: 548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.45 : 937.87 = 365.53 : x
  2. Step 2: Convert to fraction form
    625.45/937.87 = 365.53/x
  3. Step 3: Cross multiply
    625.45x = 937.87 × 365.53
  4. Step 4: Simplify right side
    625.45x = 342,819.62
  5. Step 5: Solve for x
    x = 342,819.62/625.45
  6. Step 6: Final answer
    x = 548.12

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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.