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Finding the Fourth Proportional to 300,248.37, 450,118.20 and 131,640.92

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Solution

The fourth proportional to 300,248.37, 450,118.20 and 131,640.92 is: 197,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,248.37 : 450,118.20 = 131,640.92 : x
  2. Step 2: Convert to fraction form
    300,248.37/450,118.20 = 131,640.92/x
  3. Step 3: Cross multiply
    300,248.37x = 450,118.20 × 131,640.92
  4. Step 4: Simplify right side
    300,248.37x = 59,253,972,900.44
  5. Step 5: Solve for x
    x = 59,253,972,900.44/300,248.37
  6. Step 6: Final answer
    x = 197,349.86

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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.