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Finding the Fourth Proportional to 202,290.30, 303,435.45 and 69,150.60

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Solution

The fourth proportional to 202,290.30, 303,435.45 and 69,150.60 is: 103,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,290.30 : 303,435.45 = 69,150.60 : x
  2. Step 2: Convert to fraction form
    202,290.30/303,435.45 = 69,150.60/x
  3. Step 3: Cross multiply
    202,290.30x = 303,435.45 × 69,150.60
  4. Step 4: Simplify right side
    202,290.30x = 20,982,743,428.77
  5. Step 5: Solve for x
    x = 20,982,743,428.77/202,290.30
  6. Step 6: Final answer
    x = 103,725.90

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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.