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Finding the Fourth Proportional to 228,563.52, 315,450.72 and 127,968

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Solution

The fourth proportional to 228,563.52, 315,450.72 and 127,968 is: 176,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,563.52 : 315,450.72 = 127,968 : x
  2. Step 2: Convert to fraction form
    228,563.52/315,450.72 = 127,968/x
  3. Step 3: Cross multiply
    228,563.52x = 315,450.72 × 127,968
  4. Step 4: Simplify right side
    228,563.52x = 40,367,597,736.96
  5. Step 5: Solve for x
    x = 40,367,597,736.96/228,563.52
  6. Step 6: Final answer
    x = 176,614.35

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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.