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Finding the Fourth Proportional to 324,243, 486,340.20 and 113,882.76

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Solution

The fourth proportional to 324,243, 486,340.20 and 113,882.76 is: 170,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,243 : 486,340.20 = 113,882.76 : x
  2. Step 2: Convert to fraction form
    324,243/486,340.20 = 113,882.76/x
  3. Step 3: Cross multiply
    324,243x = 486,340.20 × 113,882.76
  4. Step 4: Simplify right side
    324,243x = 55,385,764,274.95
  5. Step 5: Solve for x
    x = 55,385,764,274.95/324,243
  6. Step 6: Final answer
    x = 170,815.61

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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.