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Finding the Fourth Proportional to 324,109.35, 486,164.03 and 87,451.65

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Solution

The fourth proportional to 324,109.35, 486,164.03 and 87,451.65 is: 131,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,109.35 : 486,164.03 = 87,451.65 : x
  2. Step 2: Convert to fraction form
    324,109.35/486,164.03 = 87,451.65/x
  3. Step 3: Cross multiply
    324,109.35x = 486,164.03 × 87,451.65
  4. Step 4: Simplify right side
    324,109.35x = 42,515,846,156.89
  5. Step 5: Solve for x
    x = 42,515,846,156.89/324,109.35
  6. Step 6: Final answer
    x = 131,177.48

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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.