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Finding the Fourth Proportional to 173.52, 259.92 and 140.88

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Solution

The fourth proportional to 173.52, 259.92 and 140.88 is: 211.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.52 : 259.92 = 140.88 : x
  2. Step 2: Convert to fraction form
    173.52/259.92 = 140.88/x
  3. Step 3: Cross multiply
    173.52x = 259.92 × 140.88
  4. Step 4: Simplify right side
    173.52x = 36,617.53
  5. Step 5: Solve for x
    x = 36,617.53/173.52
  6. Step 6: Final answer
    x = 211.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.