Home / 403,917.77-557,403.44-222,630.05

Finding the Fourth Proportional to 403,917.77, 557,403.44 and 222,630.05

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Solution

The fourth proportional to 403,917.77, 557,403.44 and 222,630.05 is: 307,227.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,917.77 : 557,403.44 = 222,630.05 : x
  2. Step 2: Convert to fraction form
    403,917.77/557,403.44 = 222,630.05/x
  3. Step 3: Cross multiply
    403,917.77x = 557,403.44 × 222,630.05
  4. Step 4: Simplify right side
    403,917.77x = 124,094,751,817.21
  5. Step 5: Solve for x
    x = 124,094,751,817.21/403,917.77
  6. Step 6: Final answer
    x = 307,227.76

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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.