Home / 404,039.87-557,558.22-220,274.47

Finding the Fourth Proportional to 404,039.87, 557,558.22 and 220,274.47

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Solution

The fourth proportional to 404,039.87, 557,558.22 and 220,274.47 is: 303,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,039.87 : 557,558.22 = 220,274.47 : x
  2. Step 2: Convert to fraction form
    404,039.87/557,558.22 = 220,274.47/x
  3. Step 3: Cross multiply
    404,039.87x = 557,558.22 × 220,274.47
  4. Step 4: Simplify right side
    404,039.87x = 122,815,841,404.64
  5. Step 5: Solve for x
    x = 122,815,841,404.64/404,039.87
  6. Step 6: Final answer
    x = 303,969.61

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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.