Home / 256,538.46-354,023.56-143,361.21

Finding the Fourth Proportional to 256,538.46, 354,023.56 and 143,361.21

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Solution

The fourth proportional to 256,538.46, 354,023.56 and 143,361.21 is: 197,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,538.46 : 354,023.56 = 143,361.21 : x
  2. Step 2: Convert to fraction form
    256,538.46/354,023.56 = 143,361.21/x
  3. Step 3: Cross multiply
    256,538.46x = 354,023.56 × 143,361.21
  4. Step 4: Simplify right side
    256,538.46x = 50,753,245,213.30
  5. Step 5: Solve for x
    x = 50,753,245,213.30/256,538.46
  6. Step 6: Final answer
    x = 197,838.74

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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.