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Finding the Fourth Proportional to 276,057.60, 414,086.40 and 266,872.20

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Solution

The fourth proportional to 276,057.60, 414,086.40 and 266,872.20 is: 400,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,057.60 : 414,086.40 = 266,872.20 : x
  2. Step 2: Convert to fraction form
    276,057.60/414,086.40 = 266,872.20/x
  3. Step 3: Cross multiply
    276,057.60x = 414,086.40 × 266,872.20
  4. Step 4: Simplify right side
    276,057.60x = 110,508,148,558.08
  5. Step 5: Solve for x
    x = 110,508,148,558.08/276,057.60
  6. Step 6: Final answer
    x = 400,308.30

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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.