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Finding the Fourth Proportional to 617.62, 926.22 and 232.78

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Solution

The fourth proportional to 617.62, 926.22 and 232.78 is: 349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.62 : 926.22 = 232.78 : x
  2. Step 2: Convert to fraction form
    617.62/926.22 = 232.78/x
  3. Step 3: Cross multiply
    617.62x = 926.22 × 232.78
  4. Step 4: Simplify right side
    617.62x = 215,605.49
  5. Step 5: Solve for x
    x = 215,605.49/617.62
  6. Step 6: Final answer
    x = 349.09

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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.