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Finding the Fourth Proportional to 299,980.23, 449,993.52 and 100,301.46

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Solution

The fourth proportional to 299,980.23, 449,993.52 and 100,301.46 is: 150,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,980.23 : 449,993.52 = 100,301.46 : x
  2. Step 2: Convert to fraction form
    299,980.23/449,993.52 = 100,301.46/x
  3. Step 3: Cross multiply
    299,980.23x = 449,993.52 × 100,301.46
  4. Step 4: Simplify right side
    299,980.23x = 45,135,007,046.54
  5. Step 5: Solve for x
    x = 45,135,007,046.54/299,980.23
  6. Step 6: Final answer
    x = 150,459.94

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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.