Home / 219,315.45-328,923.96-100,873

Finding the Fourth Proportional to 219,315.45, 328,923.96 and 100,873

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Solution

The fourth proportional to 219,315.45, 328,923.96 and 100,873 is: 151,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,315.45 : 328,923.96 = 100,873 : x
  2. Step 2: Convert to fraction form
    219,315.45/328,923.96 = 100,873/x
  3. Step 3: Cross multiply
    219,315.45x = 328,923.96 × 100,873
  4. Step 4: Simplify right side
    219,315.45x = 33,179,546,617.08
  5. Step 5: Solve for x
    x = 33,179,546,617.08/219,315.45
  6. Step 6: Final answer
    x = 151,286.86

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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.