Home / 228,716.09-315,630.07-126,743.27

Finding the Fourth Proportional to 228,716.09, 315,630.07 and 126,743.27

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Solution

The fourth proportional to 228,716.09, 315,630.07 and 126,743.27 is: 174,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,716.09 : 315,630.07 = 126,743.27 : x
  2. Step 2: Convert to fraction form
    228,716.09/315,630.07 = 126,743.27/x
  3. Step 3: Cross multiply
    228,716.09x = 315,630.07 × 126,743.27
  4. Step 4: Simplify right side
    228,716.09x = 40,003,986,470.73
  5. Step 5: Solve for x
    x = 40,003,986,470.73/228,716.09
  6. Step 6: Final answer
    x = 174,906.74

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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.