Home / 403,791.15-557,229.20-222,504.51

Finding the Fourth Proportional to 403,791.15, 557,229.20 and 222,504.51

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Solution

The fourth proportional to 403,791.15, 557,229.20 and 222,504.51 is: 307,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,791.15 : 557,229.20 = 222,504.51 : x
  2. Step 2: Convert to fraction form
    403,791.15/557,229.20 = 222,504.51/x
  3. Step 3: Cross multiply
    403,791.15x = 557,229.20 × 222,504.51
  4. Step 4: Simplify right side
    403,791.15x = 123,986,008,991.17
  5. Step 5: Solve for x
    x = 123,986,008,991.17/403,791.15
  6. Step 6: Final answer
    x = 307,054.80

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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.