Home / 256,822.87-354,396.31-143,623.75

Finding the Fourth Proportional to 256,822.87, 354,396.31 and 143,623.75

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Solution

The fourth proportional to 256,822.87, 354,396.31 and 143,623.75 is: 198,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,822.87 : 354,396.31 = 143,623.75 : x
  2. Step 2: Convert to fraction form
    256,822.87/354,396.31 = 143,623.75/x
  3. Step 3: Cross multiply
    256,822.87x = 354,396.31 × 143,623.75
  4. Step 4: Simplify right side
    256,822.87x = 50,899,727,028.36
  5. Step 5: Solve for x
    x = 50,899,727,028.36/256,822.87
  6. Step 6: Final answer
    x = 198,190.01

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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.