Home / 221,243.90-331,865.85-132,451.70

Finding the Fourth Proportional to 221,243.90, 331,865.85 and 132,451.70

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Solution

The fourth proportional to 221,243.90, 331,865.85 and 132,451.70 is: 198,677.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,243.90 : 331,865.85 = 132,451.70 : x
  2. Step 2: Convert to fraction form
    221,243.90/331,865.85 = 132,451.70/x
  3. Step 3: Cross multiply
    221,243.90x = 331,865.85 × 132,451.70
  4. Step 4: Simplify right side
    221,243.90x = 43,956,196,004.45
  5. Step 5: Solve for x
    x = 43,956,196,004.45/221,243.90
  6. Step 6: Final answer
    x = 198,677.55

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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.