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Finding the Fourth Proportional to 300,251.74, 450,123.26 and 131,644.30

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Solution

The fourth proportional to 300,251.74, 450,123.26 and 131,644.30 is: 197,354.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,251.74 : 450,123.26 = 131,644.30 : x
  2. Step 2: Convert to fraction form
    300,251.74/450,123.26 = 131,644.30/x
  3. Step 3: Cross multiply
    300,251.74x = 450,123.26 × 131,644.30
  4. Step 4: Simplify right side
    300,251.74x = 59,256,161,476.42
  5. Step 5: Solve for x
    x = 59,256,161,476.42/300,251.74
  6. Step 6: Final answer
    x = 197,354.93

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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.