Home / 300,200.10-449,206.65-221,468.10

Finding the Fourth Proportional to 300,200.10, 449,206.65 and 221,468.10

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Solution

The fourth proportional to 300,200.10, 449,206.65 and 221,468.10 is: 331,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,200.10 : 449,206.65 = 221,468.10 : x
  2. Step 2: Convert to fraction form
    300,200.10/449,206.65 = 221,468.10/x
  3. Step 3: Cross multiply
    300,200.10x = 449,206.65 × 221,468.10
  4. Step 4: Simplify right side
    300,200.10x = 99,484,943,282.87
  5. Step 5: Solve for x
    x = 99,484,943,282.87/300,200.10
  6. Step 6: Final answer
    x = 331,395.44

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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.