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Finding the Fourth Proportional to 399,252.56, 550,935.44 and 227,124.72

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Solution

The fourth proportional to 399,252.56, 550,935.44 and 227,124.72 is: 313,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,252.56 : 550,935.44 = 227,124.72 : x
  2. Step 2: Convert to fraction form
    399,252.56/550,935.44 = 227,124.72/x
  3. Step 3: Cross multiply
    399,252.56x = 550,935.44 × 227,124.72
  4. Step 4: Simplify right side
    399,252.56x = 125,131,057,548.08
  5. Step 5: Solve for x
    x = 125,131,057,548.08/399,252.56
  6. Step 6: Final answer
    x = 313,413.29

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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.