Home / 212,969.45-319,453.88-55,198.06

Finding the Fourth Proportional to 212,969.45, 319,453.88 and 55,198.06

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Solution

The fourth proportional to 212,969.45, 319,453.88 and 55,198.06 is: 82,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,969.45 : 319,453.88 = 55,198.06 : x
  2. Step 2: Convert to fraction form
    212,969.45/319,453.88 = 55,198.06/x
  3. Step 3: Cross multiply
    212,969.45x = 319,453.88 × 55,198.06
  4. Step 4: Simplify right side
    212,969.45x = 17,633,233,360.85
  5. Step 5: Solve for x
    x = 17,633,233,360.85/212,969.45
  6. Step 6: Final answer
    x = 82,797.01

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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.