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Finding the Fourth Proportional to 228,884.69, 315,857.61 and 126,910.35

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Solution

The fourth proportional to 228,884.69, 315,857.61 and 126,910.35 is: 175,134.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,884.69 : 315,857.61 = 126,910.35 : x
  2. Step 2: Convert to fraction form
    228,884.69/315,857.61 = 126,910.35/x
  3. Step 3: Cross multiply
    228,884.69x = 315,857.61 × 126,910.35
  4. Step 4: Simplify right side
    228,884.69x = 40,085,599,835.26
  5. Step 5: Solve for x
    x = 40,085,599,835.26/228,884.69
  6. Step 6: Final answer
    x = 175,134.47

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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.