Home / 213,477.24-320,178.77-80,358.54

Finding the Fourth Proportional to 213,477.24, 320,178.77 and 80,358.54

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Solution

The fourth proportional to 213,477.24, 320,178.77 and 80,358.54 is: 120,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,477.24 : 320,178.77 = 80,358.54 : x
  2. Step 2: Convert to fraction form
    213,477.24/320,178.77 = 80,358.54/x
  3. Step 3: Cross multiply
    213,477.24x = 320,178.77 × 80,358.54
  4. Step 4: Simplify right side
    213,477.24x = 25,729,098,496.20
  5. Step 5: Solve for x
    x = 25,729,098,496.20/213,477.24
  6. Step 6: Final answer
    x = 120,523.85

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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.