Home / 312,145.12-468,217.68-146,049.76

Finding the Fourth Proportional to 312,145.12, 468,217.68 and 146,049.76

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Solution

The fourth proportional to 312,145.12, 468,217.68 and 146,049.76 is: 219,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,145.12 : 468,217.68 = 146,049.76 : x
  2. Step 2: Convert to fraction form
    312,145.12/468,217.68 = 146,049.76/x
  3. Step 3: Cross multiply
    312,145.12x = 468,217.68 × 146,049.76
  4. Step 4: Simplify right side
    312,145.12x = 68,383,079,791.76
  5. Step 5: Solve for x
    x = 68,383,079,791.76/312,145.12
  6. Step 6: Final answer
    x = 219,074.64

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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.