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Finding the Fourth Proportional to 263,273.70, 394,910.55 and 145,175.70

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Solution

The fourth proportional to 263,273.70, 394,910.55 and 145,175.70 is: 217,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,273.70 : 394,910.55 = 145,175.70 : x
  2. Step 2: Convert to fraction form
    263,273.70/394,910.55 = 145,175.70/x
  3. Step 3: Cross multiply
    263,273.70x = 394,910.55 × 145,175.70
  4. Step 4: Simplify right side
    263,273.70x = 57,331,415,533.64
  5. Step 5: Solve for x
    x = 57,331,415,533.64/263,273.70
  6. Step 6: Final answer
    x = 217,763.55

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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.