Home / 276,257.85-414,389.85-76,579.97

Finding the Fourth Proportional to 276,257.85, 414,389.85 and 76,579.97

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Solution

The fourth proportional to 276,257.85, 414,389.85 and 76,579.97 is: 114,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,257.85 : 414,389.85 = 76,579.97 : x
  2. Step 2: Convert to fraction form
    276,257.85/414,389.85 = 76,579.97/x
  3. Step 3: Cross multiply
    276,257.85x = 414,389.85 × 76,579.97
  4. Step 4: Simplify right side
    276,257.85x = 31,733,962,281.30
  5. Step 5: Solve for x
    x = 31,733,962,281.30/276,257.85
  6. Step 6: Final answer
    x = 114,870.81

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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.