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Finding the Fourth Proportional to 321,542.92, 443,740.98 and 240,828.04

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Solution

The fourth proportional to 321,542.92, 443,740.98 and 240,828.04 is: 332,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,542.92 : 443,740.98 = 240,828.04 : x
  2. Step 2: Convert to fraction form
    321,542.92/443,740.98 = 240,828.04/x
  3. Step 3: Cross multiply
    321,542.92x = 443,740.98 × 240,828.04
  4. Step 4: Simplify right side
    321,542.92x = 106,865,270,481.08
  5. Step 5: Solve for x
    x = 106,865,270,481.08/321,542.92
  6. Step 6: Final answer
    x = 332,351.50

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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.