Home / 220,021.44-329,796-144,090.96

Finding the Fourth Proportional to 220,021.44, 329,796 and 144,090.96

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Solution

The fourth proportional to 220,021.44, 329,796 and 144,090.96 is: 215,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,021.44 : 329,796 = 144,090.96 : x
  2. Step 2: Convert to fraction form
    220,021.44/329,796 = 144,090.96/x
  3. Step 3: Cross multiply
    220,021.44x = 329,796 × 144,090.96
  4. Step 4: Simplify right side
    220,021.44x = 47,520,622,244.16
  5. Step 5: Solve for x
    x = 47,520,622,244.16/220,021.44
  6. Step 6: Final answer
    x = 215,981.78

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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.