Home / 256,837.13-354,436.52-143,659.88

Finding the Fourth Proportional to 256,837.13, 354,436.52 and 143,659.88

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Solution

The fourth proportional to 256,837.13, 354,436.52 and 143,659.88 is: 198,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,837.13 : 354,436.52 = 143,659.88 : x
  2. Step 2: Convert to fraction form
    256,837.13/354,436.52 = 143,659.88/x
  3. Step 3: Cross multiply
    256,837.13x = 354,436.52 × 143,659.88
  4. Step 4: Simplify right side
    256,837.13x = 50,918,305,440.34
  5. Step 5: Solve for x
    x = 50,918,305,440.34/256,837.13
  6. Step 6: Final answer
    x = 198,251.34

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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.