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Finding the Fourth Proportional to 269,869.80, 404,804.70 and 189,388.20

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Solution

The fourth proportional to 269,869.80, 404,804.70 and 189,388.20 is: 284,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,869.80 : 404,804.70 = 189,388.20 : x
  2. Step 2: Convert to fraction form
    269,869.80/404,804.70 = 189,388.20/x
  3. Step 3: Cross multiply
    269,869.80x = 404,804.70 × 189,388.20
  4. Step 4: Simplify right side
    269,869.80x = 76,665,233,484.54
  5. Step 5: Solve for x
    x = 76,665,233,484.54/269,869.80
  6. Step 6: Final answer
    x = 284,082.30

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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.