Home / 219,015.06-328,575.46-82,239.28

Finding the Fourth Proportional to 219,015.06, 328,575.46 and 82,239.28

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Solution

The fourth proportional to 219,015.06, 328,575.46 and 82,239.28 is: 123,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,015.06 : 328,575.46 = 82,239.28 : x
  2. Step 2: Convert to fraction form
    219,015.06/328,575.46 = 82,239.28/x
  3. Step 3: Cross multiply
    219,015.06x = 328,575.46 × 82,239.28
  4. Step 4: Simplify right side
    219,015.06x = 27,021,810,882.65
  5. Step 5: Solve for x
    x = 27,021,810,882.65/219,015.06
  6. Step 6: Final answer
    x = 123,378.78

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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.