Home / 300,120.04-449,680.29-211,186.70

Finding the Fourth Proportional to 300,120.04, 449,680.29 and 211,186.70

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Solution

The fourth proportional to 300,120.04, 449,680.29 and 211,186.70 is: 316,428.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,120.04 : 449,680.29 = 211,186.70 : x
  2. Step 2: Convert to fraction form
    300,120.04/449,680.29 = 211,186.70/x
  3. Step 3: Cross multiply
    300,120.04x = 449,680.29 × 211,186.70
  4. Step 4: Simplify right side
    300,120.04x = 94,966,496,500.14
  5. Step 5: Solve for x
    x = 94,966,496,500.14/300,120.04
  6. Step 6: Final answer
    x = 316,428.37

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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.