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Finding the Fourth Proportional to 579.00, 868.42 and 189.17

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Solution

The fourth proportional to 579.00, 868.42 and 189.17 is: 283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.00 : 868.42 = 189.17 : x
  2. Step 2: Convert to fraction form
    579.00/868.42 = 189.17/x
  3. Step 3: Cross multiply
    579.00x = 868.42 × 189.17
  4. Step 4: Simplify right side
    579.00x = 164,278.54
  5. Step 5: Solve for x
    x = 164,278.54/579.00
  6. Step 6: Final answer
    x = 283.73

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Find fourth proportional to 289.50, 434.21 and 94.59
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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.