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Finding the Fourth Proportional to 275,308.80, 412,860.80 and 109,062.40

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Solution

The fourth proportional to 275,308.80, 412,860.80 and 109,062.40 is: 163,553.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,308.80 : 412,860.80 = 109,062.40 : x
  2. Step 2: Convert to fraction form
    275,308.80/412,860.80 = 109,062.40/x
  3. Step 3: Cross multiply
    275,308.80x = 412,860.80 × 109,062.40
  4. Step 4: Simplify right side
    275,308.80x = 45,027,589,713.92
  5. Step 5: Solve for x
    x = 45,027,589,713.92/275,308.80
  6. Step 6: Final answer
    x = 163,553.03

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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.