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Finding the Fourth Proportional to 202,504.80, 303,757.20 and 136,149.60

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Solution

The fourth proportional to 202,504.80, 303,757.20 and 136,149.60 is: 204,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,504.80 : 303,757.20 = 136,149.60 : x
  2. Step 2: Convert to fraction form
    202,504.80/303,757.20 = 136,149.60/x
  3. Step 3: Cross multiply
    202,504.80x = 303,757.20 × 136,149.60
  4. Step 4: Simplify right side
    202,504.80x = 41,356,421,277.12
  5. Step 5: Solve for x
    x = 41,356,421,277.12/202,504.80
  6. Step 6: Final answer
    x = 204,224.40

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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.