Home / 256,921.22-354,535.75-142,192.92

Finding the Fourth Proportional to 256,921.22, 354,535.75 and 142,192.92

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Solution

The fourth proportional to 256,921.22, 354,535.75 and 142,192.92 is: 196,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,921.22 : 354,535.75 = 142,192.92 : x
  2. Step 2: Convert to fraction form
    256,921.22/354,535.75 = 142,192.92/x
  3. Step 3: Cross multiply
    256,921.22x = 354,535.75 × 142,192.92
  4. Step 4: Simplify right side
    256,921.22x = 50,412,473,049.88
  5. Step 5: Solve for x
    x = 50,412,473,049.88/256,921.22
  6. Step 6: Final answer
    x = 196,217.63

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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.