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Finding the Fourth Proportional to 213,122.88, 319,744.26 and 93,190.37

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Solution

The fourth proportional to 213,122.88, 319,744.26 and 93,190.37 is: 139,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,122.88 : 319,744.26 = 93,190.37 : x
  2. Step 2: Convert to fraction form
    213,122.88/319,744.26 = 93,190.37/x
  3. Step 3: Cross multiply
    213,122.88x = 319,744.26 × 93,190.37
  4. Step 4: Simplify right side
    213,122.88x = 29,797,084,296.05
  5. Step 5: Solve for x
    x = 29,797,084,296.05/213,122.88
  6. Step 6: Final answer
    x = 139,811.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.