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Finding the Fourth Proportional to 579.34, 868.80 and 194.50

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Solution

The fourth proportional to 579.34, 868.80 and 194.50 is: 291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.34 : 868.80 = 194.50 : x
  2. Step 2: Convert to fraction form
    579.34/868.80 = 194.50/x
  3. Step 3: Cross multiply
    579.34x = 868.80 × 194.50
  4. Step 4: Simplify right side
    579.34x = 168,981.60
  5. Step 5: Solve for x
    x = 168,981.60/579.34
  6. Step 6: Final answer
    x = 291.68

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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.