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Finding the Fourth Proportional to 230,355.16, 345,581.94 and 80,600.34

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Solution

The fourth proportional to 230,355.16, 345,581.94 and 80,600.34 is: 120,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,355.16 : 345,581.94 = 80,600.34 : x
  2. Step 2: Convert to fraction form
    230,355.16/345,581.94 = 80,600.34/x
  3. Step 3: Cross multiply
    230,355.16x = 345,581.94 × 80,600.34
  4. Step 4: Simplify right side
    230,355.16x = 27,854,021,861.86
  5. Step 5: Solve for x
    x = 27,854,021,861.86/230,355.16
  6. Step 6: Final answer
    x = 120,917.72

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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.