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Finding the Fourth Proportional to 625.73, 939.22 and 366.22

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Solution

The fourth proportional to 625.73, 939.22 and 366.22 is: 549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.73 : 939.22 = 366.22 : x
  2. Step 2: Convert to fraction form
    625.73/939.22 = 366.22/x
  3. Step 3: Cross multiply
    625.73x = 939.22 × 366.22
  4. Step 4: Simplify right side
    625.73x = 343,959.32
  5. Step 5: Solve for x
    x = 343,959.32/625.73
  6. Step 6: Final answer
    x = 549.70

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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.