Home / 327,692.39-491,729.75-138,141.25

Finding the Fourth Proportional to 327,692.39, 491,729.75 and 138,141.25

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Solution

The fourth proportional to 327,692.39, 491,729.75 and 138,141.25 is: 207,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,692.39 : 491,729.75 = 138,141.25 : x
  2. Step 2: Convert to fraction form
    327,692.39/491,729.75 = 138,141.25/x
  3. Step 3: Cross multiply
    327,692.39x = 491,729.75 × 138,141.25
  4. Step 4: Simplify right side
    327,692.39x = 67,928,161,636.48
  5. Step 5: Solve for x
    x = 67,928,161,636.48/327,692.39
  6. Step 6: Final answer
    x = 207,292.46

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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.