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Finding the Fourth Proportional to 579.28, 866.77 and 348.33

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Solution

The fourth proportional to 579.28, 866.77 and 348.33 is: 521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.28 : 866.77 = 348.33 : x
  2. Step 2: Convert to fraction form
    579.28/866.77 = 348.33/x
  3. Step 3: Cross multiply
    579.28x = 866.77 × 348.33
  4. Step 4: Simplify right side
    579.28x = 301,921.99
  5. Step 5: Solve for x
    x = 301,921.99/579.28
  6. Step 6: Final answer
    x = 521.20

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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.