Home / 202,288.20-303,432.30-69,172.80

Finding the Fourth Proportional to 202,288.20, 303,432.30 and 69,172.80

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Solution

The fourth proportional to 202,288.20, 303,432.30 and 69,172.80 is: 103,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,288.20 : 303,432.30 = 69,172.80 : x
  2. Step 2: Convert to fraction form
    202,288.20/303,432.30 = 69,172.80/x
  3. Step 3: Cross multiply
    202,288.20x = 303,432.30 × 69,172.80
  4. Step 4: Simplify right side
    202,288.20x = 20,989,261,801.44
  5. Step 5: Solve for x
    x = 20,989,261,801.44/202,288.20
  6. Step 6: Final answer
    x = 103,759.20

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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.