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Finding the Fourth Proportional to 221,469.60, 331,895.58 and 167,389.86

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Solution

The fourth proportional to 221,469.60, 331,895.58 and 167,389.86 is: 250,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,469.60 : 331,895.58 = 167,389.86 : x
  2. Step 2: Convert to fraction form
    221,469.60/331,895.58 = 167,389.86/x
  3. Step 3: Cross multiply
    221,469.60x = 331,895.58 × 167,389.86
  4. Step 4: Simplify right side
    221,469.60x = 55,555,954,670.82
  5. Step 5: Solve for x
    x = 55,555,954,670.82/221,469.60
  6. Step 6: Final answer
    x = 250,851.38

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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.