Home / 274,520.38-378,725.34-167,072.80

Finding the Fourth Proportional to 274,520.38, 378,725.34 and 167,072.80

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Solution

The fourth proportional to 274,520.38, 378,725.34 and 167,072.80 is: 230,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,520.38 : 378,725.34 = 167,072.80 : x
  2. Step 2: Convert to fraction form
    274,520.38/378,725.34 = 167,072.80/x
  3. Step 3: Cross multiply
    274,520.38x = 378,725.34 × 167,072.80
  4. Step 4: Simplify right side
    274,520.38x = 63,274,702,984.75
  5. Step 5: Solve for x
    x = 63,274,702,984.75/274,520.38
  6. Step 6: Final answer
    x = 230,491.82

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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.