Home / 281,938.86-422,922.60-82,274.40

Finding the Fourth Proportional to 281,938.86, 422,922.60 and 82,274.40

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Solution

The fourth proportional to 281,938.86, 422,922.60 and 82,274.40 is: 123,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,938.86 : 422,922.60 = 82,274.40 : x
  2. Step 2: Convert to fraction form
    281,938.86/422,922.60 = 82,274.40/x
  3. Step 3: Cross multiply
    281,938.86x = 422,922.60 × 82,274.40
  4. Step 4: Simplify right side
    281,938.86x = 34,795,703,161.44
  5. Step 5: Solve for x
    x = 34,795,703,161.44/281,938.86
  6. Step 6: Final answer
    x = 123,415.78

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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.