Home / 225,682.18-311,652.08-145,249.78

Finding the Fourth Proportional to 225,682.18, 311,652.08 and 145,249.78

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Solution

The fourth proportional to 225,682.18, 311,652.08 and 145,249.78 is: 200,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,682.18 : 311,652.08 = 145,249.78 : x
  2. Step 2: Convert to fraction form
    225,682.18/311,652.08 = 145,249.78/x
  3. Step 3: Cross multiply
    225,682.18x = 311,652.08 × 145,249.78
  4. Step 4: Simplify right side
    225,682.18x = 45,267,396,056.54
  5. Step 5: Solve for x
    x = 45,267,396,056.54/225,682.18
  6. Step 6: Final answer
    x = 200,580.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.