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Finding the Fourth Proportional to 173.20, 237.95 and 140.35

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Solution

The fourth proportional to 173.20, 237.95 and 140.35 is: 192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.20 : 237.95 = 140.35 : x
  2. Step 2: Convert to fraction form
    173.20/237.95 = 140.35/x
  3. Step 3: Cross multiply
    173.20x = 237.95 × 140.35
  4. Step 4: Simplify right side
    173.20x = 33,396.28
  5. Step 5: Solve for x
    x = 33,396.28/173.20
  6. Step 6: Final answer
    x = 192.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.