Home / 221,843.30-306,033.54-131,155.10

Finding the Fourth Proportional to 221,843.30, 306,033.54 and 131,155.10

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Solution

The fourth proportional to 221,843.30, 306,033.54 and 131,155.10 is: 180,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,843.30 : 306,033.54 = 131,155.10 : x
  2. Step 2: Convert to fraction form
    221,843.30/306,033.54 = 131,155.10/x
  3. Step 3: Cross multiply
    221,843.30x = 306,033.54 × 131,155.10
  4. Step 4: Simplify right side
    221,843.30x = 40,137,859,542.05
  5. Step 5: Solve for x
    x = 40,137,859,542.05/221,843.30
  6. Step 6: Final answer
    x = 180,928.88

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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.