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Finding the Fourth Proportional to 269,740, 404,629.44 and 103,528

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Solution

The fourth proportional to 269,740, 404,629.44 and 103,528 is: 155,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,740 : 404,629.44 = 103,528 : x
  2. Step 2: Convert to fraction form
    269,740/404,629.44 = 103,528/x
  3. Step 3: Cross multiply
    269,740x = 404,629.44 × 103,528
  4. Step 4: Simplify right side
    269,740x = 41,890,476,664.32
  5. Step 5: Solve for x
    x = 41,890,476,664.32/269,740
  6. Step 6: Final answer
    x = 155,299.46

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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.