Home / 258,208.80-386,594.85-131,576.04

Finding the Fourth Proportional to 258,208.80, 386,594.85 and 131,576.04

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Solution

The fourth proportional to 258,208.80, 386,594.85 and 131,576.04 is: 196,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,208.80 : 386,594.85 = 131,576.04 : x
  2. Step 2: Convert to fraction form
    258,208.80/386,594.85 = 131,576.04/x
  3. Step 3: Cross multiply
    258,208.80x = 386,594.85 × 131,576.04
  4. Step 4: Simplify right side
    258,208.80x = 50,866,619,447.39
  5. Step 5: Solve for x
    x = 50,866,619,447.39/258,208.80
  6. Step 6: Final answer
    x = 196,998.01

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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.