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Finding the Fourth Proportional to 300,390.80, 449,711.40 and 182,001.20

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Solution

The fourth proportional to 300,390.80, 449,711.40 and 182,001.20 is: 272,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,390.80 : 449,711.40 = 182,001.20 : x
  2. Step 2: Convert to fraction form
    300,390.80/449,711.40 = 182,001.20/x
  3. Step 3: Cross multiply
    300,390.80x = 449,711.40 × 182,001.20
  4. Step 4: Simplify right side
    300,390.80x = 81,848,014,453.68
  5. Step 5: Solve for x
    x = 81,848,014,453.68/300,390.80
  6. Step 6: Final answer
    x = 272,471.77

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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.