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Finding the Fourth Proportional to 228,293.44, 315,027.84 and 127,672

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Solution

The fourth proportional to 228,293.44, 315,027.84 and 127,672 is: 176,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,293.44 : 315,027.84 = 127,672 : x
  2. Step 2: Convert to fraction form
    228,293.44/315,027.84 = 127,672/x
  3. Step 3: Cross multiply
    228,293.44x = 315,027.84 × 127,672
  4. Step 4: Simplify right side
    228,293.44x = 40,220,234,388.48
  5. Step 5: Solve for x
    x = 40,220,234,388.48/228,293.44
  6. Step 6: Final answer
    x = 176,177.79

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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.