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Finding the Fourth Proportional to 579.17, 868.49 and 335.77

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Solution

The fourth proportional to 579.17, 868.49 and 335.77 is: 503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.17 : 868.49 = 335.77 : x
  2. Step 2: Convert to fraction form
    579.17/868.49 = 335.77/x
  3. Step 3: Cross multiply
    579.17x = 868.49 × 335.77
  4. Step 4: Simplify right side
    579.17x = 291,610.30
  5. Step 5: Solve for x
    x = 291,610.30/579.17
  6. Step 6: Final answer
    x = 503.49

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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.