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Finding the Fourth Proportional to 697.09, 963.23 and 548.10

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Solution

The fourth proportional to 697.09, 963.23 and 548.10 is: 757.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.09 : 963.23 = 548.10 : x
  2. Step 2: Convert to fraction form
    697.09/963.23 = 548.10/x
  3. Step 3: Cross multiply
    697.09x = 963.23 × 548.10
  4. Step 4: Simplify right side
    697.09x = 527,943.62
  5. Step 5: Solve for x
    x = 527,943.62/697.09
  6. Step 6: Final answer
    x = 757.35

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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.