Home / 403,821.74-557,277.66-222,540.16

Finding the Fourth Proportional to 403,821.74, 557,277.66 and 222,540.16

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Solution

The fourth proportional to 403,821.74, 557,277.66 and 222,540.16 is: 307,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,821.74 : 557,277.66 = 222,540.16 : x
  2. Step 2: Convert to fraction form
    403,821.74/557,277.66 = 222,540.16/x
  3. Step 3: Cross multiply
    403,821.74x = 557,277.66 × 222,540.16
  4. Step 4: Simplify right side
    403,821.74x = 124,016,658,508.13
  5. Step 5: Solve for x
    x = 124,016,658,508.13/403,821.74
  6. Step 6: Final answer
    x = 307,107.44

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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.