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Finding the Fourth Proportional to 253,890.33, 350,164.36 and 223,197.80

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Solution

The fourth proportional to 253,890.33, 350,164.36 and 223,197.80 is: 307,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,890.33 : 350,164.36 = 223,197.80 : x
  2. Step 2: Convert to fraction form
    253,890.33/350,164.36 = 223,197.80/x
  3. Step 3: Cross multiply
    253,890.33x = 350,164.36 × 223,197.80
  4. Step 4: Simplify right side
    253,890.33x = 78,155,914,790.41
  5. Step 5: Solve for x
    x = 78,155,914,790.41/253,890.33
  6. Step 6: Final answer
    x = 307,833.37

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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.