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Finding the Fourth Proportional to 173.36, 238.50 and 144.20

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Solution

The fourth proportional to 173.36, 238.50 and 144.20 is: 198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.36 : 238.50 = 144.20 : x
  2. Step 2: Convert to fraction form
    173.36/238.50 = 144.20/x
  3. Step 3: Cross multiply
    173.36x = 238.50 × 144.20
  4. Step 4: Simplify right side
    173.36x = 34,392.30
  5. Step 5: Solve for x
    x = 34,392.30/173.36
  6. Step 6: Final answer
    x = 198.38

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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.