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Finding the Fourth Proportional to 324,520.27, 486,743.50 and 87,881.41

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Solution

The fourth proportional to 324,520.27, 486,743.50 and 87,881.41 is: 131,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,520.27 : 486,743.50 = 87,881.41 : x
  2. Step 2: Convert to fraction form
    324,520.27/486,743.50 = 87,881.41/x
  3. Step 3: Cross multiply
    324,520.27x = 486,743.50 × 87,881.41
  4. Step 4: Simplify right side
    324,520.27x = 42,775,703,315.85
  5. Step 5: Solve for x
    x = 42,775,703,315.85/324,520.27
  6. Step 6: Final answer
    x = 131,812.11

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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.