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Finding the Fourth Proportional to 100,361.20, 150,488.34 and 33,779.20

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Solution

The fourth proportional to 100,361.20, 150,488.34 and 33,779.20 is: 50,650.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.20 : 150,488.34 = 33,779.20 : x
  2. Step 2: Convert to fraction form
    100,361.20/150,488.34 = 33,779.20/x
  3. Step 3: Cross multiply
    100,361.20x = 150,488.34 × 33,779.20
  4. Step 4: Simplify right side
    100,361.20x = 5,083,375,734.53
  5. Step 5: Solve for x
    x = 5,083,375,734.53/100,361.20
  6. Step 6: Final answer
    x = 50,650.81

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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.