Home / 221,420.40-332,290.20-88,223.52

Finding the Fourth Proportional to 221,420.40, 332,290.20 and 88,223.52

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Solution

The fourth proportional to 221,420.40, 332,290.20 and 88,223.52 is: 132,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,420.40 : 332,290.20 = 88,223.52 : x
  2. Step 2: Convert to fraction form
    221,420.40/332,290.20 = 88,223.52/x
  3. Step 3: Cross multiply
    221,420.40x = 332,290.20 × 88,223.52
  4. Step 4: Simplify right side
    221,420.40x = 29,315,811,105.50
  5. Step 5: Solve for x
    x = 29,315,811,105.50/221,420.40
  6. Step 6: Final answer
    x = 132,398.87

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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.