Home / 275,082.57-379,632.20-154,231.65

Finding the Fourth Proportional to 275,082.57, 379,632.20 and 154,231.65

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Solution

The fourth proportional to 275,082.57, 379,632.20 and 154,231.65 is: 212,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,082.57 : 379,632.20 = 154,231.65 : x
  2. Step 2: Convert to fraction form
    275,082.57/379,632.20 = 154,231.65/x
  3. Step 3: Cross multiply
    275,082.57x = 379,632.20 × 154,231.65
  4. Step 4: Simplify right side
    275,082.57x = 58,551,299,827.97
  5. Step 5: Solve for x
    x = 58,551,299,827.97/275,082.57
  6. Step 6: Final answer
    x = 212,849.91

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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.