Home / 299,820.20-449,903.10-112,965.80

Finding the Fourth Proportional to 299,820.20, 449,903.10 and 112,965.80

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Solution

The fourth proportional to 299,820.20, 449,903.10 and 112,965.80 is: 169,513.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,820.20 : 449,903.10 = 112,965.80 : x
  2. Step 2: Convert to fraction form
    299,820.20/449,903.10 = 112,965.80/x
  3. Step 3: Cross multiply
    299,820.20x = 449,903.10 × 112,965.80
  4. Step 4: Simplify right side
    299,820.20x = 50,823,663,613.98
  5. Step 5: Solve for x
    x = 50,823,663,613.98/299,820.20
  6. Step 6: Final answer
    x = 169,513.81

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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.