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Finding the Fourth Proportional to 665,884.52, 998,965.02 and 222,641

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Solution

The fourth proportional to 665,884.52, 998,965.02 and 222,641 is: 334,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,884.52 : 998,965.02 = 222,641 : x
  2. Step 2: Convert to fraction form
    665,884.52/998,965.02 = 222,641/x
  3. Step 3: Cross multiply
    665,884.52x = 998,965.02 × 222,641
  4. Step 4: Simplify right side
    665,884.52x = 222,410,571,017.82
  5. Step 5: Solve for x
    x = 222,410,571,017.82/665,884.52
  6. Step 6: Final answer
    x = 334,007.72

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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.