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Finding the Fourth Proportional to 300,119.04, 449,678.79 and 211,185.70

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Solution

The fourth proportional to 300,119.04, 449,678.79 and 211,185.70 is: 316,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,119.04 : 449,678.79 = 211,185.70 : x
  2. Step 2: Convert to fraction form
    300,119.04/449,678.79 = 211,185.70/x
  3. Step 3: Cross multiply
    300,119.04x = 449,678.79 × 211,185.70
  4. Step 4: Simplify right side
    300,119.04x = 94,965,728,917.11
  5. Step 5: Solve for x
    x = 94,965,728,917.11/300,119.04
  6. Step 6: Final answer
    x = 316,426.87

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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.