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Finding the Fourth Proportional to 392,576.52, 541,762.88 and 222,821.56

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Solution

The fourth proportional to 392,576.52, 541,762.88 and 222,821.56 is: 307,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,576.52 : 541,762.88 = 222,821.56 : x
  2. Step 2: Convert to fraction form
    392,576.52/541,762.88 = 222,821.56/x
  3. Step 3: Cross multiply
    392,576.52x = 541,762.88 × 222,821.56
  4. Step 4: Simplify right side
    392,576.52x = 120,716,450,071.69
  5. Step 5: Solve for x
    x = 120,716,450,071.69/392,576.52
  6. Step 6: Final answer
    x = 307,497.89

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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.