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Finding the Fourth Proportional to 695.68, 960.03 and 376.64

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Solution

The fourth proportional to 695.68, 960.03 and 376.64 is: 519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.68 : 960.03 = 376.64 : x
  2. Step 2: Convert to fraction form
    695.68/960.03 = 376.64/x
  3. Step 3: Cross multiply
    695.68x = 960.03 × 376.64
  4. Step 4: Simplify right side
    695.68x = 361,589.90
  5. Step 5: Solve for x
    x = 361,589.90/695.68
  6. Step 6: Final answer
    x = 519.77

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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.