Home / 225,620.20-311,334.18-134,957.80

Finding the Fourth Proportional to 225,620.20, 311,334.18 and 134,957.80

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Solution

The fourth proportional to 225,620.20, 311,334.18 and 134,957.80 is: 186,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,620.20 : 311,334.18 = 134,957.80 : x
  2. Step 2: Convert to fraction form
    225,620.20/311,334.18 = 134,957.80/x
  3. Step 3: Cross multiply
    225,620.20x = 311,334.18 × 134,957.80
  4. Step 4: Simplify right side
    225,620.20x = 42,016,975,997.60
  5. Step 5: Solve for x
    x = 42,016,975,997.60/225,620.20
  6. Step 6: Final answer
    x = 186,228.79

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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.