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Finding the Fourth Proportional to 300,251.75, 450,123.25 and 131,644.29

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Solution

The fourth proportional to 300,251.75, 450,123.25 and 131,644.29 is: 197,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,251.75 : 450,123.25 = 131,644.29 : x
  2. Step 2: Convert to fraction form
    300,251.75/450,123.25 = 131,644.29/x
  3. Step 3: Cross multiply
    300,251.75x = 450,123.25 × 131,644.29
  4. Step 4: Simplify right side
    300,251.75x = 59,256,155,658.74
  5. Step 5: Solve for x
    x = 59,256,155,658.74/300,251.75
  6. Step 6: Final answer
    x = 197,354.91

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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.