Home / 221,974.57-306,252.39-135,843.85

Finding the Fourth Proportional to 221,974.57, 306,252.39 and 135,843.85

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Solution

The fourth proportional to 221,974.57, 306,252.39 and 135,843.85 is: 187,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,974.57 : 306,252.39 = 135,843.85 : x
  2. Step 2: Convert to fraction form
    221,974.57/306,252.39 = 135,843.85/x
  3. Step 3: Cross multiply
    221,974.57x = 306,252.39 × 135,843.85
  4. Step 4: Simplify right side
    221,974.57x = 41,602,503,729.30
  5. Step 5: Solve for x
    x = 41,602,503,729.30/221,974.57
  6. Step 6: Final answer
    x = 187,420.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.