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Finding the Fourth Proportional to 220,764.96, 331,113.96 and 80,523.72

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Solution

The fourth proportional to 220,764.96, 331,113.96 and 80,523.72 is: 120,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,764.96 : 331,113.96 = 80,523.72 : x
  2. Step 2: Convert to fraction form
    220,764.96/331,113.96 = 80,523.72/x
  3. Step 3: Cross multiply
    220,764.96x = 331,113.96 × 80,523.72
  4. Step 4: Simplify right side
    220,764.96x = 26,662,527,803.13
  5. Step 5: Solve for x
    x = 26,662,527,803.13/220,764.96
  6. Step 6: Final answer
    x = 120,773.37

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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.