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Finding the Fourth Proportional to 276,903.30, 415,026.90 and 206,700.60

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Solution

The fourth proportional to 276,903.30, 415,026.90 and 206,700.60 is: 309,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,903.30 : 415,026.90 = 206,700.60 : x
  2. Step 2: Convert to fraction form
    276,903.30/415,026.90 = 206,700.60/x
  3. Step 3: Cross multiply
    276,903.30x = 415,026.90 × 206,700.60
  4. Step 4: Simplify right side
    276,903.30x = 85,786,309,246.14
  5. Step 5: Solve for x
    x = 85,786,309,246.14/276,903.30
  6. Step 6: Final answer
    x = 309,806.02

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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.