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Finding the Fourth Proportional to 399,194.69, 550,883.81 and 227,112.22

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Solution

The fourth proportional to 399,194.69, 550,883.81 and 227,112.22 is: 313,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,194.69 : 550,883.81 = 227,112.22 : x
  2. Step 2: Convert to fraction form
    399,194.69/550,883.81 = 227,112.22/x
  3. Step 3: Cross multiply
    399,194.69x = 550,883.81 × 227,112.22
  4. Step 4: Simplify right side
    399,194.69x = 125,112,444,241.73
  5. Step 5: Solve for x
    x = 125,112,444,241.73/399,194.69
  6. Step 6: Final answer
    x = 313,412.09

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1.5x scale

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.