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Finding the Fourth Proportional to 100,362.20, 150,489.84 and 33,780.20

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Solution

The fourth proportional to 100,362.20, 150,489.84 and 33,780.20 is: 50,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,362.20 : 150,489.84 = 33,780.20 : x
  2. Step 2: Convert to fraction form
    100,362.20/150,489.84 = 33,780.20/x
  3. Step 3: Cross multiply
    100,362.20x = 150,489.84 × 33,780.20
  4. Step 4: Simplify right side
    100,362.20x = 5,083,576,893.17
  5. Step 5: Solve for x
    x = 5,083,576,893.17/100,362.20
  6. Step 6: Final answer
    x = 50,652.31

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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.