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Finding the Fourth Proportional to 695.43, 961.02 and 549.23

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Solution

The fourth proportional to 695.43, 961.02 and 549.23 is: 758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.43 : 961.02 = 549.23 : x
  2. Step 2: Convert to fraction form
    695.43/961.02 = 549.23/x
  3. Step 3: Cross multiply
    695.43x = 961.02 × 549.23
  4. Step 4: Simplify right side
    695.43x = 527,816.21
  5. Step 5: Solve for x
    x = 527,816.21/695.43
  6. Step 6: Final answer
    x = 758.98

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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.