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Finding the Fourth Proportional to 521,667.88, 782,436.48 and 166,652.44

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Solution

The fourth proportional to 521,667.88, 782,436.48 and 166,652.44 is: 249,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,667.88 : 782,436.48 = 166,652.44 : x
  2. Step 2: Convert to fraction form
    521,667.88/782,436.48 = 166,652.44/x
  3. Step 3: Cross multiply
    521,667.88x = 782,436.48 × 166,652.44
  4. Step 4: Simplify right side
    521,667.88x = 130,394,948,537.01
  5. Step 5: Solve for x
    x = 130,394,948,537.01/521,667.88
  6. Step 6: Final answer
    x = 249,957.79

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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.