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Finding the Fourth Proportional to 643,173.98, 964,907.94 and 222,449.42

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Solution

The fourth proportional to 643,173.98, 964,907.94 and 222,449.42 is: 333,724.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,173.98 : 964,907.94 = 222,449.42 : x
  2. Step 2: Convert to fraction form
    643,173.98/964,907.94 = 222,449.42/x
  3. Step 3: Cross multiply
    643,173.98x = 964,907.94 × 222,449.42
  4. Step 4: Simplify right side
    643,173.98x = 214,643,211,606.40
  5. Step 5: Solve for x
    x = 214,643,211,606.40/643,173.98
  6. Step 6: Final answer
    x = 333,724.96

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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.