Home / 221,979.40-332,969.10-204,872.20

Finding the Fourth Proportional to 221,979.40, 332,969.10 and 204,872.20

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Solution

The fourth proportional to 221,979.40, 332,969.10 and 204,872.20 is: 307,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,979.40 : 332,969.10 = 204,872.20 : x
  2. Step 2: Convert to fraction form
    221,979.40/332,969.10 = 204,872.20/x
  3. Step 3: Cross multiply
    221,979.40x = 332,969.10 × 204,872.20
  4. Step 4: Simplify right side
    221,979.40x = 68,216,112,049.02
  5. Step 5: Solve for x
    x = 68,216,112,049.02/221,979.40
  6. Step 6: Final answer
    x = 307,308.30

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1.5x scale

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.