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Finding the Fourth Proportional to 626.25, 939.38 and 193.44

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Solution

The fourth proportional to 626.25, 939.38 and 193.44 is: 290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.25 : 939.38 = 193.44 : x
  2. Step 2: Convert to fraction form
    626.25/939.38 = 193.44/x
  3. Step 3: Cross multiply
    626.25x = 939.38 × 193.44
  4. Step 4: Simplify right side
    626.25x = 181,713.67
  5. Step 5: Solve for x
    x = 181,713.67/626.25
  6. Step 6: Final answer
    x = 290.16

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Similar ratio
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1.5x scale

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.