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Finding the Fourth Proportional to 228,879.27, 315,842.39 and 126,908.88

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Solution

The fourth proportional to 228,879.27, 315,842.39 and 126,908.88 is: 175,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,879.27 : 315,842.39 = 126,908.88 : x
  2. Step 2: Convert to fraction form
    228,879.27/315,842.39 = 126,908.88/x
  3. Step 3: Cross multiply
    228,879.27x = 315,842.39 × 126,908.88
  4. Step 4: Simplify right side
    228,879.27x = 40,083,202,628.38
  5. Step 5: Solve for x
    x = 40,083,202,628.38/228,879.27
  6. Step 6: Final answer
    x = 175,128.15

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1.5x scale

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.