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Finding the Fourth Proportional to 322,480.80, 444,899.43 and 207,750.78

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Solution

The fourth proportional to 322,480.80, 444,899.43 and 207,750.78 is: 286,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,480.80 : 444,899.43 = 207,750.78 : x
  2. Step 2: Convert to fraction form
    322,480.80/444,899.43 = 207,750.78/x
  3. Step 3: Cross multiply
    322,480.80x = 444,899.43 × 207,750.78
  4. Step 4: Simplify right side
    322,480.80x = 92,428,203,604.06
  5. Step 5: Solve for x
    x = 92,428,203,604.06/322,480.80
  6. Step 6: Final answer
    x = 286,616.14

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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.