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Finding the Fourth Proportional to 401,573.34, 554,183.19 and 222,721.50

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Solution

The fourth proportional to 401,573.34, 554,183.19 and 222,721.50 is: 307,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,573.34 : 554,183.19 = 222,721.50 : x
  2. Step 2: Convert to fraction form
    401,573.34/554,183.19 = 222,721.50/x
  3. Step 3: Cross multiply
    401,573.34x = 554,183.19 × 222,721.50
  4. Step 4: Simplify right side
    401,573.34x = 123,428,511,351.59
  5. Step 5: Solve for x
    x = 123,428,511,351.59/401,573.34
  6. Step 6: Final answer
    x = 307,362.31

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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.