Home / 256,660.96-354,193.32-143,481.28

Finding the Fourth Proportional to 256,660.96, 354,193.32 and 143,481.28

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Solution

The fourth proportional to 256,660.96, 354,193.32 and 143,481.28 is: 198,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,660.96 : 354,193.32 = 143,481.28 : x
  2. Step 2: Convert to fraction form
    256,660.96/354,193.32 = 143,481.28/x
  3. Step 3: Cross multiply
    256,660.96x = 354,193.32 × 143,481.28
  4. Step 4: Simplify right side
    256,660.96x = 50,820,110,921.05
  5. Step 5: Solve for x
    x = 50,820,110,921.05/256,660.96
  6. Step 6: Final answer
    x = 198,004.83

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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.