Home / 403,936.11-557,463.96-222,680.25

Finding the Fourth Proportional to 403,936.11, 557,463.96 and 222,680.25

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Solution

The fourth proportional to 403,936.11, 557,463.96 and 222,680.25 is: 307,316.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,936.11 : 557,463.96 = 222,680.25 : x
  2. Step 2: Convert to fraction form
    403,936.11/557,463.96 = 222,680.25/x
  3. Step 3: Cross multiply
    403,936.11x = 557,463.96 × 222,680.25
  4. Step 4: Simplify right side
    403,936.11x = 124,136,213,978.79
  5. Step 5: Solve for x
    x = 124,136,213,978.79/403,936.11
  6. Step 6: Final answer
    x = 307,316.46

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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.