Home / 338,140.45-506,844.56-219,896.65

Finding the Fourth Proportional to 338,140.45, 506,844.56 and 219,896.65

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Solution

The fourth proportional to 338,140.45, 506,844.56 and 219,896.65 is: 329,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,140.45 : 506,844.56 = 219,896.65 : x
  2. Step 2: Convert to fraction form
    338,140.45/506,844.56 = 219,896.65/x
  3. Step 3: Cross multiply
    338,140.45x = 506,844.56 × 219,896.65
  4. Step 4: Simplify right side
    338,140.45x = 111,453,419,715.24
  5. Step 5: Solve for x
    x = 111,453,419,715.24/338,140.45
  6. Step 6: Final answer
    x = 329,606.88

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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.