Home / 221,024.69-331,537.03-80,783.31

Finding the Fourth Proportional to 221,024.69, 331,537.03 and 80,783.31

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Solution

The fourth proportional to 221,024.69, 331,537.03 and 80,783.31 is: 121,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,024.69 : 331,537.03 = 80,783.31 : x
  2. Step 2: Convert to fraction form
    221,024.69/331,537.03 = 80,783.31/x
  3. Step 3: Cross multiply
    221,024.69x = 331,537.03 × 80,783.31
  4. Step 4: Simplify right side
    221,024.69x = 26,782,658,670.97
  5. Step 5: Solve for x
    x = 26,782,658,670.97/221,024.69
  6. Step 6: Final answer
    x = 121,174.96

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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.