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Finding the Fourth Proportional to 228,777.38, 315,704.63 and 126,812.37

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Solution

The fourth proportional to 228,777.38, 315,704.63 and 126,812.37 is: 174,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,777.38 : 315,704.63 = 126,812.37 : x
  2. Step 2: Convert to fraction form
    228,777.38/315,704.63 = 126,812.37/x
  3. Step 3: Cross multiply
    228,777.38x = 315,704.63 × 126,812.37
  4. Step 4: Simplify right side
    228,777.38x = 40,035,252,505.47
  5. Step 5: Solve for x
    x = 40,035,252,505.47/228,777.38
  6. Step 6: Final answer
    x = 174,996.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.