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Finding the Fourth Proportional to 260,044.30, 389,629.05 and 222,427.90

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Solution

The fourth proportional to 260,044.30, 389,629.05 and 222,427.90 is: 333,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,044.30 : 389,629.05 = 222,427.90 : x
  2. Step 2: Convert to fraction form
    260,044.30/389,629.05 = 222,427.90/x
  3. Step 3: Cross multiply
    260,044.30x = 389,629.05 × 222,427.90
  4. Step 4: Simplify right side
    260,044.30x = 86,664,371,370.50
  5. Step 5: Solve for x
    x = 86,664,371,370.50/260,044.30
  6. Step 6: Final answer
    x = 333,267.72

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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.