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Finding the Fourth Proportional to 408,975, 613,518.39 and 142,696.41

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Solution

The fourth proportional to 408,975, 613,518.39 and 142,696.41 is: 214,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,975 : 613,518.39 = 142,696.41 : x
  2. Step 2: Convert to fraction form
    408,975/613,518.39 = 142,696.41/x
  3. Step 3: Cross multiply
    408,975x = 613,518.39 × 142,696.41
  4. Step 4: Simplify right side
    408,975x = 87,546,871,721.98
  5. Step 5: Solve for x
    x = 87,546,871,721.98/408,975
  6. Step 6: Final answer
    x = 214,064.12

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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.