Home / 276,278.98-414,418.64-86,738.52

Finding the Fourth Proportional to 276,278.98, 414,418.64 and 86,738.52

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Solution

The fourth proportional to 276,278.98, 414,418.64 and 86,738.52 is: 130,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,278.98 : 414,418.64 = 86,738.52 : x
  2. Step 2: Convert to fraction form
    276,278.98/414,418.64 = 86,738.52/x
  3. Step 3: Cross multiply
    276,278.98x = 414,418.64 × 86,738.52
  4. Step 4: Simplify right side
    276,278.98x = 35,946,057,668.89
  5. Step 5: Solve for x
    x = 35,946,057,668.89/276,278.98
  6. Step 6: Final answer
    x = 130,107.83

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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.