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Finding the Fourth Proportional to 275,576.67, 380,286.06 and 154,723.05

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Solution

The fourth proportional to 275,576.67, 380,286.06 and 154,723.05 is: 213,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,576.67 : 380,286.06 = 154,723.05 : x
  2. Step 2: Convert to fraction form
    275,576.67/380,286.06 = 154,723.05/x
  3. Step 3: Cross multiply
    275,576.67x = 380,286.06 × 154,723.05
  4. Step 4: Simplify right side
    275,576.67x = 58,839,019,075.68
  5. Step 5: Solve for x
    x = 58,839,019,075.68/275,576.67
  6. Step 6: Final answer
    x = 213,512.34

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1.5x scale

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.