Home / 321,288.17-443,579.27-206,765.84

Finding the Fourth Proportional to 321,288.17, 443,579.27 and 206,765.84

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Solution

The fourth proportional to 321,288.17, 443,579.27 and 206,765.84 is: 285,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,288.17 : 443,579.27 = 206,765.84 : x
  2. Step 2: Convert to fraction form
    321,288.17/443,579.27 = 206,765.84/x
  3. Step 3: Cross multiply
    321,288.17x = 443,579.27 × 206,765.84
  4. Step 4: Simplify right side
    321,288.17x = 91,717,040,368.14
  5. Step 5: Solve for x
    x = 91,717,040,368.14/321,288.17
  6. Step 6: Final answer
    x = 285,466.60

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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.