Home / 300,204.10-449,212.65-221,472.10

Finding the Fourth Proportional to 300,204.10, 449,212.65 and 221,472.10

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Solution

The fourth proportional to 300,204.10, 449,212.65 and 221,472.10 is: 331,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,204.10 : 449,212.65 = 221,472.10 : x
  2. Step 2: Convert to fraction form
    300,204.10/449,212.65 = 221,472.10/x
  3. Step 3: Cross multiply
    300,204.10x = 449,212.65 × 221,472.10
  4. Step 4: Simplify right side
    300,204.10x = 99,488,068,942.07
  5. Step 5: Solve for x
    x = 99,488,068,942.07/300,204.10
  6. Step 6: Final answer
    x = 331,401.43

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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.