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Finding the Fourth Proportional to 339,772.80, 469,394.88 and 223,761.96

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Solution

The fourth proportional to 339,772.80, 469,394.88 and 223,761.96 is: 309,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,772.80 : 469,394.88 = 223,761.96 : x
  2. Step 2: Convert to fraction form
    339,772.80/469,394.88 = 223,761.96/x
  3. Step 3: Cross multiply
    339,772.80x = 469,394.88 × 223,761.96
  4. Step 4: Simplify right side
    339,772.80x = 105,032,718,362.77
  5. Step 5: Solve for x
    x = 105,032,718,362.77/339,772.80
  6. Step 6: Final answer
    x = 309,126.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.