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Finding the Fourth Proportional to 275,335.40, 412,311.90 and 262,893.80

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Solution

The fourth proportional to 275,335.40, 412,311.90 and 262,893.80 is: 393,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,335.40 : 412,311.90 = 262,893.80 : x
  2. Step 2: Convert to fraction form
    275,335.40/412,311.90 = 262,893.80/x
  3. Step 3: Cross multiply
    275,335.40x = 412,311.90 × 262,893.80
  4. Step 4: Simplify right side
    275,335.40x = 108,394,242,176.22
  5. Step 5: Solve for x
    x = 108,394,242,176.22/275,335.40
  6. Step 6: Final answer
    x = 393,680.73

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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.