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Finding the Fourth Proportional to 228,896.30, 315,877.57 and 126,928.94

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Solution

The fourth proportional to 228,896.30, 315,877.57 and 126,928.94 is: 175,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,896.30 : 315,877.57 = 126,928.94 : x
  2. Step 2: Convert to fraction form
    228,896.30/315,877.57 = 126,928.94/x
  3. Step 3: Cross multiply
    228,896.30x = 315,877.57 × 126,928.94
  4. Step 4: Simplify right side
    228,896.30x = 40,094,005,129.88
  5. Step 5: Solve for x
    x = 40,094,005,129.88/228,896.30
  6. Step 6: Final answer
    x = 175,162.31

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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.