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Finding the Fourth Proportional to 585.93, 878.22 and 220.49

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Solution

The fourth proportional to 585.93, 878.22 and 220.49 is: 330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.93 : 878.22 = 220.49 : x
  2. Step 2: Convert to fraction form
    585.93/878.22 = 220.49/x
  3. Step 3: Cross multiply
    585.93x = 878.22 × 220.49
  4. Step 4: Simplify right side
    585.93x = 193,638.73
  5. Step 5: Solve for x
    x = 193,638.73/585.93
  6. Step 6: Final answer
    x = 330.48

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Double scale
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Similar ratio
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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.