Home / 250,661.20-345,910.10-135,942.37

Finding the Fourth Proportional to 250,661.20, 345,910.10 and 135,942.37

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Solution

The fourth proportional to 250,661.20, 345,910.10 and 135,942.37 is: 187,599.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,661.20 : 345,910.10 = 135,942.37 : x
  2. Step 2: Convert to fraction form
    250,661.20/345,910.10 = 135,942.37/x
  3. Step 3: Cross multiply
    250,661.20x = 345,910.10 × 135,942.37
  4. Step 4: Simplify right side
    250,661.20x = 47,023,837,986.10
  5. Step 5: Solve for x
    x = 47,023,837,986.10/250,661.20
  6. Step 6: Final answer
    x = 187,599.19

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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.