Home / 256,945.20-354,584.64-143,767.68

Finding the Fourth Proportional to 256,945.20, 354,584.64 and 143,767.68

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Solution

The fourth proportional to 256,945.20, 354,584.64 and 143,767.68 is: 198,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,945.20 : 354,584.64 = 143,767.68 : x
  2. Step 2: Convert to fraction form
    256,945.20/354,584.64 = 143,767.68/x
  3. Step 3: Cross multiply
    256,945.20x = 354,584.64 × 143,767.68
  4. Step 4: Simplify right side
    256,945.20x = 50,977,811,056.44
  5. Step 5: Solve for x
    x = 50,977,811,056.44/256,945.20
  6. Step 6: Final answer
    x = 198,399.55

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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.