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Finding the Fourth Proportional to 321,980.48, 444,334.76 and 201,191.88

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Solution

The fourth proportional to 321,980.48, 444,334.76 and 201,191.88 is: 277,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,980.48 : 444,334.76 = 201,191.88 : x
  2. Step 2: Convert to fraction form
    321,980.48/444,334.76 = 201,191.88/x
  3. Step 3: Cross multiply
    321,980.48x = 444,334.76 × 201,191.88
  4. Step 4: Simplify right side
    321,980.48x = 89,396,545,713.75
  5. Step 5: Solve for x
    x = 89,396,545,713.75/321,980.48
  6. Step 6: Final answer
    x = 277,645.86

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1.5x scale

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.