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Finding the Fourth Proportional to 262,912.70, 394,397.85 and 254,618.30

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Solution

The fourth proportional to 262,912.70, 394,397.85 and 254,618.30 is: 381,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,912.70 : 394,397.85 = 254,618.30 : x
  2. Step 2: Convert to fraction form
    262,912.70/394,397.85 = 254,618.30/x
  3. Step 3: Cross multiply
    262,912.70x = 394,397.85 × 254,618.30
  4. Step 4: Simplify right side
    262,912.70x = 100,420,910,090.66
  5. Step 5: Solve for x
    x = 100,420,910,090.66/262,912.70
  6. Step 6: Final answer
    x = 381,955.34

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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.