Home / 256,578.22-354,077.06-143,400.97

Finding the Fourth Proportional to 256,578.22, 354,077.06 and 143,400.97

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Solution

The fourth proportional to 256,578.22, 354,077.06 and 143,400.97 is: 197,892.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,578.22 : 354,077.06 = 143,400.97 : x
  2. Step 2: Convert to fraction form
    256,578.22/354,077.06 = 143,400.97/x
  3. Step 3: Cross multiply
    256,578.22x = 354,077.06 × 143,400.97
  4. Step 4: Simplify right side
    256,578.22x = 50,774,993,858.75
  5. Step 5: Solve for x
    x = 50,774,993,858.75/256,578.22
  6. Step 6: Final answer
    x = 197,892.84

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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.