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Finding the Fourth Proportional to 300,391.80, 449,712.90 and 182,002.20

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Solution

The fourth proportional to 300,391.80, 449,712.90 and 182,002.20 is: 272,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,391.80 : 449,712.90 = 182,002.20 : x
  2. Step 2: Convert to fraction form
    300,391.80/449,712.90 = 182,002.20/x
  3. Step 3: Cross multiply
    300,391.80x = 449,712.90 × 182,002.20
  4. Step 4: Simplify right side
    300,391.80x = 81,848,737,168.38
  5. Step 5: Solve for x
    x = 81,848,737,168.38/300,391.80
  6. Step 6: Final answer
    x = 272,473.27

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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.