Home / 258,209.80-386,596.35-131,577.04

Finding the Fourth Proportional to 258,209.80, 386,596.35 and 131,577.04

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Solution

The fourth proportional to 258,209.80, 386,596.35 and 131,577.04 is: 196,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,209.80 : 386,596.35 = 131,577.04 : x
  2. Step 2: Convert to fraction form
    258,209.80/386,596.35 = 131,577.04/x
  3. Step 3: Cross multiply
    258,209.80x = 386,596.35 × 131,577.04
  4. Step 4: Simplify right side
    258,209.80x = 50,867,203,407.80
  5. Step 5: Solve for x
    x = 50,867,203,407.80/258,209.80
  6. Step 6: Final answer
    x = 196,999.51

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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.