Home / 218,782.82-328,229.57-61,011.29

Finding the Fourth Proportional to 218,782.82, 328,229.57 and 61,011.29

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Solution

The fourth proportional to 218,782.82, 328,229.57 and 61,011.29 is: 91,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,782.82 : 328,229.57 = 61,011.29 : x
  2. Step 2: Convert to fraction form
    218,782.82/328,229.57 = 61,011.29/x
  3. Step 3: Cross multiply
    218,782.82x = 328,229.57 × 61,011.29
  4. Step 4: Simplify right side
    218,782.82x = 20,025,709,481.85
  5. Step 5: Solve for x
    x = 20,025,709,481.85/218,782.82
  6. Step 6: Final answer
    x = 91,532.37

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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.