Home / 397,913.28-548,947.68-228,108.48

Finding the Fourth Proportional to 397,913.28, 548,947.68 and 228,108.48

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Solution

The fourth proportional to 397,913.28, 548,947.68 and 228,108.48 is: 314,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,913.28 : 548,947.68 = 228,108.48 : x
  2. Step 2: Convert to fraction form
    397,913.28/548,947.68 = 228,108.48/x
  3. Step 3: Cross multiply
    397,913.28x = 548,947.68 × 228,108.48
  4. Step 4: Simplify right side
    397,913.28x = 125,219,620,884.33
  5. Step 5: Solve for x
    x = 125,219,620,884.33/397,913.28
  6. Step 6: Final answer
    x = 314,690.73

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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.