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Finding the Fourth Proportional to 202,100.40, 303,150.60 and 68,948.55

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Solution

The fourth proportional to 202,100.40, 303,150.60 and 68,948.55 is: 103,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,100.40 : 303,150.60 = 68,948.55 : x
  2. Step 2: Convert to fraction form
    202,100.40/303,150.60 = 68,948.55/x
  3. Step 3: Cross multiply
    202,100.40x = 303,150.60 × 68,948.55
  4. Step 4: Simplify right side
    202,100.40x = 20,901,794,301.63
  5. Step 5: Solve for x
    x = 20,901,794,301.63/202,100.40
  6. Step 6: Final answer
    x = 103,422.83

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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.