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Finding the Fourth Proportional to 392,447.77, 541,571.00 and 220,367.07

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Solution

The fourth proportional to 392,447.77, 541,571.00 and 220,367.07 is: 304,102.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,447.77 : 541,571.00 = 220,367.07 : x
  2. Step 2: Convert to fraction form
    392,447.77/541,571.00 = 220,367.07/x
  3. Step 3: Cross multiply
    392,447.77x = 541,571.00 × 220,367.07
  4. Step 4: Simplify right side
    392,447.77x = 119,344,413,365.14
  5. Step 5: Solve for x
    x = 119,344,413,365.14/392,447.77
  6. Step 6: Final answer
    x = 304,102.67

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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.