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Finding the Fourth Proportional to 222,790.80, 334,113.30 and 82,531.20

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Solution

The fourth proportional to 222,790.80, 334,113.30 and 82,531.20 is: 123,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,790.80 : 334,113.30 = 82,531.20 : x
  2. Step 2: Convert to fraction form
    222,790.80/334,113.30 = 82,531.20/x
  3. Step 3: Cross multiply
    222,790.80x = 334,113.30 × 82,531.20
  4. Step 4: Simplify right side
    222,790.80x = 27,574,771,584.96
  5. Step 5: Solve for x
    x = 27,574,771,584.96/222,790.80
  6. Step 6: Final answer
    x = 123,769.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.