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Finding the Fourth Proportional to 221,571.47, 332,287.49 and 71,777.01

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Solution

The fourth proportional to 221,571.47, 332,287.49 and 71,777.01 is: 107,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,571.47 : 332,287.49 = 71,777.01 : x
  2. Step 2: Convert to fraction form
    221,571.47/332,287.49 = 71,777.01/x
  3. Step 3: Cross multiply
    221,571.47x = 332,287.49 × 71,777.01
  4. Step 4: Simplify right side
    221,571.47x = 23,850,601,425.97
  5. Step 5: Solve for x
    x = 23,850,601,425.97/221,571.47
  6. Step 6: Final answer
    x = 107,642.93

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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.