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Finding the Fourth Proportional to 173, 239.08 and 141.87

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Solution

The fourth proportional to 173, 239.08 and 141.87 is: 196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173 : 239.08 = 141.87 : x
  2. Step 2: Convert to fraction form
    173/239.08 = 141.87/x
  3. Step 3: Cross multiply
    173x = 239.08 × 141.87
  4. Step 4: Simplify right side
    173x = 33,917.08
  5. Step 5: Solve for x
    x = 33,917.08/173
  6. Step 6: Final answer
    x = 196.05

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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.