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Finding the Fourth Proportional to 276,817.60, 415,226.40 and 271,568.80

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Solution

The fourth proportional to 276,817.60, 415,226.40 and 271,568.80 is: 407,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,817.60 : 415,226.40 = 271,568.80 : x
  2. Step 2: Convert to fraction form
    276,817.60/415,226.40 = 271,568.80/x
  3. Step 3: Cross multiply
    276,817.60x = 415,226.40 × 271,568.80
  4. Step 4: Simplify right side
    276,817.60x = 112,762,535,176.32
  5. Step 5: Solve for x
    x = 112,762,535,176.32/276,817.60
  6. Step 6: Final answer
    x = 407,353.20

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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.