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Finding the Fourth Proportional to 579.29, 868.10 and 290.93

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Solution

The fourth proportional to 579.29, 868.10 and 290.93 is: 435.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.29 : 868.10 = 290.93 : x
  2. Step 2: Convert to fraction form
    579.29/868.10 = 290.93/x
  3. Step 3: Cross multiply
    579.29x = 868.10 × 290.93
  4. Step 4: Simplify right side
    579.29x = 252,550.54
  5. Step 5: Solve for x
    x = 252,550.54/579.29
  6. Step 6: Final answer
    x = 435.97

Related Problems

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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.