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Finding the Fourth Proportional to 392,615.85, 541,812.48 and 222,852.81

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Solution

The fourth proportional to 392,615.85, 541,812.48 and 222,852.81 is: 307,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,615.85 : 541,812.48 = 222,852.81 : x
  2. Step 2: Convert to fraction form
    392,615.85/541,812.48 = 222,852.81/x
  3. Step 3: Cross multiply
    392,615.85x = 541,812.48 × 222,852.81
  4. Step 4: Simplify right side
    392,615.85x = 120,744,433,661.07
  5. Step 5: Solve for x
    x = 120,744,433,661.07/392,615.85
  6. Step 6: Final answer
    x = 307,538.36

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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.