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Finding the Fourth Proportional to 645.62, 968.23 and 183.43

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Solution

The fourth proportional to 645.62, 968.23 and 183.43 is: 275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    645.62 : 968.23 = 183.43 : x
  2. Step 2: Convert to fraction form
    645.62/968.23 = 183.43/x
  3. Step 3: Cross multiply
    645.62x = 968.23 × 183.43
  4. Step 4: Simplify right side
    645.62x = 177,605.68
  5. Step 5: Solve for x
    x = 177,605.68/645.62
  6. Step 6: Final answer
    x = 275.09

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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.