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Finding the Fourth Proportional to 579.54, 868.11 and 322.50

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Solution

The fourth proportional to 579.54, 868.11 and 322.50 is: 483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.54 : 868.11 = 322.50 : x
  2. Step 2: Convert to fraction form
    579.54/868.11 = 322.50/x
  3. Step 3: Cross multiply
    579.54x = 868.11 × 322.50
  4. Step 4: Simplify right side
    579.54x = 279,965.48
  5. Step 5: Solve for x
    x = 279,965.48/579.54
  6. Step 6: Final answer
    x = 483.08

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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.