Home / 258,015.24-386,847.18-131,344.20

Finding the Fourth Proportional to 258,015.24, 386,847.18 and 131,344.20

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Solution

The fourth proportional to 258,015.24, 386,847.18 and 131,344.20 is: 196,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,015.24 : 386,847.18 = 131,344.20 : x
  2. Step 2: Convert to fraction form
    258,015.24/386,847.18 = 131,344.20/x
  3. Step 3: Cross multiply
    258,015.24x = 386,847.18 × 131,344.20
  4. Step 4: Simplify right side
    258,015.24x = 50,810,133,379.36
  5. Step 5: Solve for x
    x = 50,810,133,379.36/258,015.24
  6. Step 6: Final answer
    x = 196,926.87

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1.5x scale

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.