Home / 256,179.78-353,527.74-143,002.53

Finding the Fourth Proportional to 256,179.78, 353,527.74 and 143,002.53

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Solution

The fourth proportional to 256,179.78, 353,527.74 and 143,002.53 is: 197,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,179.78 : 353,527.74 = 143,002.53 : x
  2. Step 2: Convert to fraction form
    256,179.78/353,527.74 = 143,002.53/x
  3. Step 3: Cross multiply
    256,179.78x = 353,527.74 × 143,002.53
  4. Step 4: Simplify right side
    256,179.78x = 50,555,361,245.18
  5. Step 5: Solve for x
    x = 50,555,361,245.18/256,179.78
  6. Step 6: Final answer
    x = 197,343.29

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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.