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Finding the Fourth Proportional to 300,036.60, 449,990.10 and 131,556.60

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Solution

The fourth proportional to 300,036.60, 449,990.10 and 131,556.60 is: 197,306.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,036.60 : 449,990.10 = 131,556.60 : x
  2. Step 2: Convert to fraction form
    300,036.60/449,990.10 = 131,556.60/x
  3. Step 3: Cross multiply
    300,036.60x = 449,990.10 × 131,556.60
  4. Step 4: Simplify right side
    300,036.60x = 59,199,167,589.66
  5. Step 5: Solve for x
    x = 59,199,167,589.66/300,036.60
  6. Step 6: Final answer
    x = 197,306.49

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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.