Home / 221,828.80-332,743.20-215,996.80

Finding the Fourth Proportional to 221,828.80, 332,743.20 and 215,996.80

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Solution

The fourth proportional to 221,828.80, 332,743.20 and 215,996.80 is: 323,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,828.80 : 332,743.20 = 215,996.80 : x
  2. Step 2: Convert to fraction form
    221,828.80/332,743.20 = 215,996.80/x
  3. Step 3: Cross multiply
    221,828.80x = 332,743.20 × 215,996.80
  4. Step 4: Simplify right side
    221,828.80x = 71,871,466,421.76
  5. Step 5: Solve for x
    x = 71,871,466,421.76/221,828.80
  6. Step 6: Final answer
    x = 323,995.20

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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.