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Finding the Fourth Proportional to 538,115.80, 806,882.10 and 222,215.80

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Solution

The fourth proportional to 538,115.80, 806,882.10 and 222,215.80 is: 333,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,115.80 : 806,882.10 = 222,215.80 : x
  2. Step 2: Convert to fraction form
    538,115.80/806,882.10 = 222,215.80/x
  3. Step 3: Cross multiply
    538,115.80x = 806,882.10 × 222,215.80
  4. Step 4: Simplify right side
    538,115.80x = 179,301,951,357.18
  5. Step 5: Solve for x
    x = 179,301,951,357.18/538,115.80
  6. Step 6: Final answer
    x = 333,203.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.