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Finding the Fourth Proportional to 269,428.80, 404,143.20 and 202,506.60

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Solution

The fourth proportional to 269,428.80, 404,143.20 and 202,506.60 is: 303,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,428.80 : 404,143.20 = 202,506.60 : x
  2. Step 2: Convert to fraction form
    269,428.80/404,143.20 = 202,506.60/x
  3. Step 3: Cross multiply
    269,428.80x = 404,143.20 × 202,506.60
  4. Step 4: Simplify right side
    269,428.80x = 81,841,665,345.12
  5. Step 5: Solve for x
    x = 81,841,665,345.12/269,428.80
  6. Step 6: Final answer
    x = 303,759.90

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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.