Home / 231,972.90-320,276.79-178,161.75

Finding the Fourth Proportional to 231,972.90, 320,276.79 and 178,161.75

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Solution

The fourth proportional to 231,972.90, 320,276.79 and 178,161.75 is: 245,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,972.90 : 320,276.79 = 178,161.75 : x
  2. Step 2: Convert to fraction form
    231,972.90/320,276.79 = 178,161.75/x
  3. Step 3: Cross multiply
    231,972.90x = 320,276.79 × 178,161.75
  4. Step 4: Simplify right side
    231,972.90x = 57,061,073,390.78
  5. Step 5: Solve for x
    x = 57,061,073,390.78/231,972.90
  6. Step 6: Final answer
    x = 245,981.64

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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.