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Finding the Fourth Proportional to 628.92, 943.49 and 195.97

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Solution

The fourth proportional to 628.92, 943.49 and 195.97 is: 293.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.92 : 943.49 = 195.97 : x
  2. Step 2: Convert to fraction form
    628.92/943.49 = 195.97/x
  3. Step 3: Cross multiply
    628.92x = 943.49 × 195.97
  4. Step 4: Simplify right side
    628.92x = 184,895.74
  5. Step 5: Solve for x
    x = 184,895.74/628.92
  6. Step 6: Final answer
    x = 293.99

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Double scale
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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.