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Finding the Fourth Proportional to 538,339.80, 807,218.10 and 222,439.80

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Solution

The fourth proportional to 538,339.80, 807,218.10 and 222,439.80 is: 333,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,339.80 : 807,218.10 = 222,439.80 : x
  2. Step 2: Convert to fraction form
    538,339.80/807,218.10 = 222,439.80/x
  3. Step 3: Cross multiply
    538,339.80x = 807,218.10 × 222,439.80
  4. Step 4: Simplify right side
    538,339.80x = 179,557,432,720.38
  5. Step 5: Solve for x
    x = 179,557,432,720.38/538,339.80
  6. Step 6: Final answer
    x = 333,539.21

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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.