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Finding the Fourth Proportional to 275,427.84, 380,436.87 and 227,204.52

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Solution

The fourth proportional to 275,427.84, 380,436.87 and 227,204.52 is: 313,828.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,427.84 : 380,436.87 = 227,204.52 : x
  2. Step 2: Convert to fraction form
    275,427.84/380,436.87 = 227,204.52/x
  3. Step 3: Cross multiply
    275,427.84x = 380,436.87 × 227,204.52
  4. Step 4: Simplify right side
    275,427.84x = 86,436,976,438.65
  5. Step 5: Solve for x
    x = 86,436,976,438.65/275,427.84
  6. Step 6: Final answer
    x = 313,828.03

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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.