Home / 221,632.20-332,448.30-81,372.60

Finding the Fourth Proportional to 221,632.20, 332,448.30 and 81,372.60

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Solution

The fourth proportional to 221,632.20, 332,448.30 and 81,372.60 is: 122,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,632.20 : 332,448.30 = 81,372.60 : x
  2. Step 2: Convert to fraction form
    221,632.20/332,448.30 = 81,372.60/x
  3. Step 3: Cross multiply
    221,632.20x = 332,448.30 × 81,372.60
  4. Step 4: Simplify right side
    221,632.20x = 27,052,182,536.58
  5. Step 5: Solve for x
    x = 27,052,182,536.58/221,632.20
  6. Step 6: Final answer
    x = 122,058.90

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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.