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Finding the Fourth Proportional to 275,811.75, 380,367.50 and 178,914.69

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Solution

The fourth proportional to 275,811.75, 380,367.50 and 178,914.69 is: 246,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,811.75 : 380,367.50 = 178,914.69 : x
  2. Step 2: Convert to fraction form
    275,811.75/380,367.50 = 178,914.69/x
  3. Step 3: Cross multiply
    275,811.75x = 380,367.50 × 178,914.69
  4. Step 4: Simplify right side
    275,811.75x = 68,053,332,454.00
  5. Step 5: Solve for x
    x = 68,053,332,454.00/275,811.75
  6. Step 6: Final answer
    x = 246,738.34

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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.