Home / 279,331.64-418,839.38-255,527.36

Finding the Fourth Proportional to 279,331.64, 418,839.38 and 255,527.36

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Solution

The fourth proportional to 279,331.64, 418,839.38 and 255,527.36 is: 383,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,331.64 : 418,839.38 = 255,527.36 : x
  2. Step 2: Convert to fraction form
    279,331.64/418,839.38 = 255,527.36/x
  3. Step 3: Cross multiply
    279,331.64x = 418,839.38 × 255,527.36
  4. Step 4: Simplify right side
    279,331.64x = 107,024,919,757.80
  5. Step 5: Solve for x
    x = 107,024,919,757.80/279,331.64
  6. Step 6: Final answer
    x = 383,146.43

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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.