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Finding the Fourth Proportional to 269,812, 404,737.62 and 103,600

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Solution

The fourth proportional to 269,812, 404,737.62 and 103,600 is: 155,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,812 : 404,737.62 = 103,600 : x
  2. Step 2: Convert to fraction form
    269,812/404,737.62 = 103,600/x
  3. Step 3: Cross multiply
    269,812x = 404,737.62 × 103,600
  4. Step 4: Simplify right side
    269,812x = 41,930,817,432
  5. Step 5: Solve for x
    x = 41,930,817,432/269,812
  6. Step 6: Final answer
    x = 155,407.53

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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.