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Finding the Fourth Proportional to 449.17, 618.00 and 350.75

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Solution

The fourth proportional to 449.17, 618.00 and 350.75 is: 482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.17 : 618.00 = 350.75 : x
  2. Step 2: Convert to fraction form
    449.17/618.00 = 350.75/x
  3. Step 3: Cross multiply
    449.17x = 618.00 × 350.75
  4. Step 4: Simplify right side
    449.17x = 216,763.73
  5. Step 5: Solve for x
    x = 216,763.73/449.17
  6. Step 6: Final answer
    x = 482.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.