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Finding the Fourth Proportional to 300,310.02, 450,010.91 and 131,736.06

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Solution

The fourth proportional to 300,310.02, 450,010.91 and 131,736.06 is: 197,404.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,310.02 : 450,010.91 = 131,736.06 : x
  2. Step 2: Convert to fraction form
    300,310.02/450,010.91 = 131,736.06/x
  3. Step 3: Cross multiply
    300,310.02x = 450,010.91 × 131,736.06
  4. Step 4: Simplify right side
    300,310.02x = 59,282,663,581.73
  5. Step 5: Solve for x
    x = 59,282,663,581.73/300,310.02
  6. Step 6: Final answer
    x = 197,404.88

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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.