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Finding the Fourth Proportional to 625.10, 936.90 and 365.22

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Solution

The fourth proportional to 625.10, 936.90 and 365.22 is: 547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.10 : 936.90 = 365.22 : x
  2. Step 2: Convert to fraction form
    625.10/936.90 = 365.22/x
  3. Step 3: Cross multiply
    625.10x = 936.90 × 365.22
  4. Step 4: Simplify right side
    625.10x = 342,174.62
  5. Step 5: Solve for x
    x = 342,174.62/625.10
  6. Step 6: Final answer
    x = 547.40

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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.