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Finding the Fourth Proportional to 626.20, 939.01 and 366.28

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Solution

The fourth proportional to 626.20, 939.01 and 366.28 is: 549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.20 : 939.01 = 366.28 : x
  2. Step 2: Convert to fraction form
    626.20/939.01 = 366.28/x
  3. Step 3: Cross multiply
    626.20x = 939.01 × 366.28
  4. Step 4: Simplify right side
    626.20x = 343,937.32
  5. Step 5: Solve for x
    x = 343,937.32/626.20
  6. Step 6: Final answer
    x = 549.25

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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.