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Finding the Fourth Proportional to 262,380.90, 394,446.15 and 223,889.70

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Solution

The fourth proportional to 262,380.90, 394,446.15 and 223,889.70 is: 336,581.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,380.90 : 394,446.15 = 223,889.70 : x
  2. Step 2: Convert to fraction form
    262,380.90/394,446.15 = 223,889.70/x
  3. Step 3: Cross multiply
    262,380.90x = 394,446.15 × 223,889.70
  4. Step 4: Simplify right side
    262,380.90x = 88,312,430,189.66
  5. Step 5: Solve for x
    x = 88,312,430,189.66/262,380.90
  6. Step 6: Final answer
    x = 336,581.02

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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.