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Finding the Fourth Proportional to 695.98, 961.14 and 548.38

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Solution

The fourth proportional to 695.98, 961.14 and 548.38 is: 757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.98 : 961.14 = 548.38 : x
  2. Step 2: Convert to fraction form
    695.98/961.14 = 548.38/x
  3. Step 3: Cross multiply
    695.98x = 961.14 × 548.38
  4. Step 4: Simplify right side
    695.98x = 527,069.95
  5. Step 5: Solve for x
    x = 527,069.95/695.98
  6. Step 6: Final answer
    x = 757.31

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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.