Home / 404,044.20-557,564.17-220,278.78

Finding the Fourth Proportional to 404,044.20, 557,564.17 and 220,278.78

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Solution

The fourth proportional to 404,044.20, 557,564.17 and 220,278.78 is: 303,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,044.20 : 557,564.17 = 220,278.78 : x
  2. Step 2: Convert to fraction form
    404,044.20/557,564.17 = 220,278.78/x
  3. Step 3: Cross multiply
    404,044.20x = 557,564.17 × 220,278.78
  4. Step 4: Simplify right side
    404,044.20x = 122,819,555,139.31
  5. Step 5: Solve for x
    x = 122,819,555,139.31/404,044.20
  6. Step 6: Final answer
    x = 303,975.54

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1.5x scale

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.