Home / 215,986.72-323,958.20-58,231.12

Finding the Fourth Proportional to 215,986.72, 323,958.20 and 58,231.12

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Solution

The fourth proportional to 215,986.72, 323,958.20 and 58,231.12 is: 87,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,986.72 : 323,958.20 = 58,231.12 : x
  2. Step 2: Convert to fraction form
    215,986.72/323,958.20 = 58,231.12/x
  3. Step 3: Cross multiply
    215,986.72x = 323,958.20 × 58,231.12
  4. Step 4: Simplify right side
    215,986.72x = 18,864,448,819.18
  5. Step 5: Solve for x
    x = 18,864,448,819.18/215,986.72
  6. Step 6: Final answer
    x = 87,340.78

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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.