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Finding the Fourth Proportional to 324,107.35, 486,161.03 and 87,450.03

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Solution

The fourth proportional to 324,107.35, 486,161.03 and 87,450.03 is: 131,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,107.35 : 486,161.03 = 87,450.03 : x
  2. Step 2: Convert to fraction form
    324,107.35/486,161.03 = 87,450.03/x
  3. Step 3: Cross multiply
    324,107.35x = 486,161.03 × 87,450.03
  4. Step 4: Simplify right side
    324,107.35x = 42,514,796,658.33
  5. Step 5: Solve for x
    x = 42,514,796,658.33/324,107.35
  6. Step 6: Final answer
    x = 131,175.05

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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.