Home / 225,997.06-311,853.23-135,350.70

Finding the Fourth Proportional to 225,997.06, 311,853.23 and 135,350.70

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Solution

The fourth proportional to 225,997.06, 311,853.23 and 135,350.70 is: 186,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,997.06 : 311,853.23 = 135,350.70 : x
  2. Step 2: Convert to fraction form
    225,997.06/311,853.23 = 135,350.70/x
  3. Step 3: Cross multiply
    225,997.06x = 311,853.23 × 135,350.70
  4. Step 4: Simplify right side
    225,997.06x = 42,209,552,977.76
  5. Step 5: Solve for x
    x = 42,209,552,977.76/225,997.06
  6. Step 6: Final answer
    x = 186,770.36

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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.