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Finding the Fourth Proportional to 299,610.80, 449,478.60 and 99,993.20

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Solution

The fourth proportional to 299,610.80, 449,478.60 and 99,993.20 is: 150,010.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,610.80 : 449,478.60 = 99,993.20 : x
  2. Step 2: Convert to fraction form
    299,610.80/449,478.60 = 99,993.20/x
  3. Step 3: Cross multiply
    299,610.80x = 449,478.60 × 99,993.20
  4. Step 4: Simplify right side
    299,610.80x = 44,944,803,545.52
  5. Step 5: Solve for x
    x = 44,944,803,545.52/299,610.80
  6. Step 6: Final answer
    x = 150,010.63

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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.