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Finding the Fourth Proportional to 463.27, 695.12 and 189.56

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Solution

The fourth proportional to 463.27, 695.12 and 189.56 is: 284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.27 : 695.12 = 189.56 : x
  2. Step 2: Convert to fraction form
    463.27/695.12 = 189.56/x
  3. Step 3: Cross multiply
    463.27x = 695.12 × 189.56
  4. Step 4: Simplify right side
    463.27x = 131,766.95
  5. Step 5: Solve for x
    x = 131,766.95/463.27
  6. Step 6: Final answer
    x = 284.43

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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.