Home / 256,340.92-353,707.50-143,164.12

Finding the Fourth Proportional to 256,340.92, 353,707.50 and 143,164.12

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Solution

The fourth proportional to 256,340.92, 353,707.50 and 143,164.12 is: 197,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,340.92 : 353,707.50 = 143,164.12 : x
  2. Step 2: Convert to fraction form
    256,340.92/353,707.50 = 143,164.12/x
  3. Step 3: Cross multiply
    256,340.92x = 353,707.50 × 143,164.12
  4. Step 4: Simplify right side
    256,340.92x = 50,638,222,974.90
  5. Step 5: Solve for x
    x = 50,638,222,974.90/256,340.92
  6. Step 6: Final answer
    x = 197,542.49

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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.