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Finding the Fourth Proportional to 276,651.60, 414,977.40 and 252,157.20

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Solution

The fourth proportional to 276,651.60, 414,977.40 and 252,157.20 is: 378,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,651.60 : 414,977.40 = 252,157.20 : x
  2. Step 2: Convert to fraction form
    276,651.60/414,977.40 = 252,157.20/x
  3. Step 3: Cross multiply
    276,651.60x = 414,977.40 × 252,157.20
  4. Step 4: Simplify right side
    276,651.60x = 104,639,539,247.28
  5. Step 5: Solve for x
    x = 104,639,539,247.28/276,651.60
  6. Step 6: Final answer
    x = 378,235.80

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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.