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Finding the Fourth Proportional to 207,002.68, 310,425.22 and 135,906.30

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Solution

The fourth proportional to 207,002.68, 310,425.22 and 135,906.30 is: 203,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,002.68 : 310,425.22 = 135,906.30 : x
  2. Step 2: Convert to fraction form
    207,002.68/310,425.22 = 135,906.30/x
  3. Step 3: Cross multiply
    207,002.68x = 310,425.22 × 135,906.30
  4. Step 4: Simplify right side
    207,002.68x = 42,188,743,076.89
  5. Step 5: Solve for x
    x = 42,188,743,076.89/207,002.68
  6. Step 6: Final answer
    x = 203,807.71

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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.