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Finding the Fourth Proportional to 695.10, 958.96 and 446.42

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Solution

The fourth proportional to 695.10, 958.96 and 446.42 is: 615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.10 : 958.96 = 446.42 : x
  2. Step 2: Convert to fraction form
    695.10/958.96 = 446.42/x
  3. Step 3: Cross multiply
    695.10x = 958.96 × 446.42
  4. Step 4: Simplify right side
    695.10x = 428,098.92
  5. Step 5: Solve for x
    x = 428,098.92/695.10
  6. Step 6: Final answer
    x = 615.88

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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.