Home / 403,940.22-557,469.63-222,684.54

Finding the Fourth Proportional to 403,940.22, 557,469.63 and 222,684.54

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Solution

The fourth proportional to 403,940.22, 557,469.63 and 222,684.54 is: 307,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,940.22 : 557,469.63 = 222,684.54 : x
  2. Step 2: Convert to fraction form
    403,940.22/557,469.63 = 222,684.54/x
  3. Step 3: Cross multiply
    403,940.22x = 557,469.63 × 222,684.54
  4. Step 4: Simplify right side
    403,940.22x = 124,139,868,120.52
  5. Step 5: Solve for x
    x = 124,139,868,120.52/403,940.22
  6. Step 6: Final answer
    x = 307,322.38

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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.