Home / 213,650.28-320,249.43-80,472.92

Finding the Fourth Proportional to 213,650.28, 320,249.43 and 80,472.92

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Solution

The fourth proportional to 213,650.28, 320,249.43 and 80,472.92 is: 120,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,650.28 : 320,249.43 = 80,472.92 : x
  2. Step 2: Convert to fraction form
    213,650.28/320,249.43 = 80,472.92/x
  3. Step 3: Cross multiply
    213,650.28x = 320,249.43 × 80,472.92
  4. Step 4: Simplify right side
    213,650.28x = 25,771,405,159.19
  5. Step 5: Solve for x
    x = 25,771,405,159.19/213,650.28
  6. Step 6: Final answer
    x = 120,624.25

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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.