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Finding the Fourth Proportional to 276,082.20, 414,066.60 and 76,352.40

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Solution

The fourth proportional to 276,082.20, 414,066.60 and 76,352.40 is: 114,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,082.20 : 414,066.60 = 76,352.40 : x
  2. Step 2: Convert to fraction form
    276,082.20/414,066.60 = 76,352.40/x
  3. Step 3: Cross multiply
    276,082.20x = 414,066.60 × 76,352.40
  4. Step 4: Simplify right side
    276,082.20x = 31,614,978,669.84
  5. Step 5: Solve for x
    x = 31,614,978,669.84/276,082.20
  6. Step 6: Final answer
    x = 114,512.92

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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.