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Finding the Fourth Proportional to 173.09, 238.82 and 114.86

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Solution

The fourth proportional to 173.09, 238.82 and 114.86 is: 158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.09 : 238.82 = 114.86 : x
  2. Step 2: Convert to fraction form
    173.09/238.82 = 114.86/x
  3. Step 3: Cross multiply
    173.09x = 238.82 × 114.86
  4. Step 4: Simplify right side
    173.09x = 27,429.10
  5. Step 5: Solve for x
    x = 27,429.10/173.09
  6. Step 6: Final answer
    x = 158.47

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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.