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Finding the Fourth Proportional to 579.30, 867.66 and 335.22

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Solution

The fourth proportional to 579.30, 867.66 and 335.22 is: 502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.30 : 867.66 = 335.22 : x
  2. Step 2: Convert to fraction form
    579.30/867.66 = 335.22/x
  3. Step 3: Cross multiply
    579.30x = 867.66 × 335.22
  4. Step 4: Simplify right side
    579.30x = 290,856.99
  5. Step 5: Solve for x
    x = 290,856.99/579.30
  6. Step 6: Final answer
    x = 502.08

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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.