Home / 228,921.95-315,906.30-126,947.15

Finding the Fourth Proportional to 228,921.95, 315,906.30 and 126,947.15

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Solution

The fourth proportional to 228,921.95, 315,906.30 and 126,947.15 is: 175,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,921.95 : 315,906.30 = 126,947.15 : x
  2. Step 2: Convert to fraction form
    228,921.95/315,906.30 = 126,947.15/x
  3. Step 3: Cross multiply
    228,921.95x = 315,906.30 × 126,947.15
  4. Step 4: Simplify right side
    228,921.95x = 40,103,404,414.20
  5. Step 5: Solve for x
    x = 40,103,404,414.20/228,921.95
  6. Step 6: Final answer
    x = 175,183.75

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1.5x scale

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.