Home / 275,011.11-378,805.41-194,298.48

Finding the Fourth Proportional to 275,011.11, 378,805.41 and 194,298.48

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Solution

The fourth proportional to 275,011.11, 378,805.41 and 194,298.48 is: 267,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,011.11 : 378,805.41 = 194,298.48 : x
  2. Step 2: Convert to fraction form
    275,011.11/378,805.41 = 194,298.48/x
  3. Step 3: Cross multiply
    275,011.11x = 378,805.41 × 194,298.48
  4. Step 4: Simplify right side
    275,011.11x = 73,601,315,378.78
  5. Step 5: Solve for x
    x = 73,601,315,378.78/275,011.11
  6. Step 6: Final answer
    x = 267,630.33

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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.