Home / 256,917.08-354,545.88-143,739.92

Finding the Fourth Proportional to 256,917.08, 354,545.88 and 143,739.92

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Solution

The fourth proportional to 256,917.08, 354,545.88 and 143,739.92 is: 198,361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,917.08 : 354,545.88 = 143,739.92 : x
  2. Step 2: Convert to fraction form
    256,917.08/354,545.88 = 143,739.92/x
  3. Step 3: Cross multiply
    256,917.08x = 354,545.88 × 143,739.92
  4. Step 4: Simplify right side
    256,917.08x = 50,962,396,427.53
  5. Step 5: Solve for x
    x = 50,962,396,427.53/256,917.08
  6. Step 6: Final answer
    x = 198,361.26

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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.