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Finding the Fourth Proportional to 401,227, 553,693.26 and 222,379

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Solution

The fourth proportional to 401,227, 553,693.26 and 222,379 is: 306,883.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,227 : 553,693.26 = 222,379 : x
  2. Step 2: Convert to fraction form
    401,227/553,693.26 = 222,379/x
  3. Step 3: Cross multiply
    401,227x = 553,693.26 × 222,379
  4. Step 4: Simplify right side
    401,227x = 123,129,753,465.54
  5. Step 5: Solve for x
    x = 123,129,753,465.54/401,227
  6. Step 6: Final answer
    x = 306,883.02

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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.