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Finding the Fourth Proportional to 230,313.43, 345,400.41 and 80,525.80

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Solution

The fourth proportional to 230,313.43, 345,400.41 and 80,525.80 is: 120,764.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,313.43 : 345,400.41 = 80,525.80 : x
  2. Step 2: Convert to fraction form
    230,313.43/345,400.41 = 80,525.80/x
  3. Step 3: Cross multiply
    230,313.43x = 345,400.41 × 80,525.80
  4. Step 4: Simplify right side
    230,313.43x = 27,813,642,608.58
  5. Step 5: Solve for x
    x = 27,813,642,608.58/230,313.43
  6. Step 6: Final answer
    x = 120,764.31

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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.