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Finding the Fourth Proportional to 269,424, 404,152.20 and 82,437.12

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Solution

The fourth proportional to 269,424, 404,152.20 and 82,437.12 is: 123,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,424 : 404,152.20 = 82,437.12 : x
  2. Step 2: Convert to fraction form
    269,424/404,152.20 = 82,437.12/x
  3. Step 3: Cross multiply
    269,424x = 404,152.20 × 82,437.12
  4. Step 4: Simplify right side
    269,424x = 33,317,143,409.66
  5. Step 5: Solve for x
    x = 33,317,143,409.66/269,424
  6. Step 6: Final answer
    x = 123,660.64

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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.