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Finding the Fourth Proportional to 463.25, 694.92 and 206.75

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Solution

The fourth proportional to 463.25, 694.92 and 206.75 is: 310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.25 : 694.92 = 206.75 : x
  2. Step 2: Convert to fraction form
    463.25/694.92 = 206.75/x
  3. Step 3: Cross multiply
    463.25x = 694.92 × 206.75
  4. Step 4: Simplify right side
    463.25x = 143,674.71
  5. Step 5: Solve for x
    x = 143,674.71/463.25
  6. Step 6: Final answer
    x = 310.15

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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.