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Finding the Fourth Proportional to 408,609.92, 563,889.23 and 227,338.75

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Solution

The fourth proportional to 408,609.92, 563,889.23 and 227,338.75 is: 313,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,609.92 : 563,889.23 = 227,338.75 : x
  2. Step 2: Convert to fraction form
    408,609.92/563,889.23 = 227,338.75/x
  3. Step 3: Cross multiply
    408,609.92x = 563,889.23 × 227,338.75
  4. Step 4: Simplify right side
    408,609.92x = 128,193,873,107.35
  5. Step 5: Solve for x
    x = 128,193,873,107.35/408,609.92
  6. Step 6: Final answer
    x = 313,731.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.