Home / 256,789.28-354,379.78-142,066.08

Finding the Fourth Proportional to 256,789.28, 354,379.78 and 142,066.08

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Solution

The fourth proportional to 256,789.28, 354,379.78 and 142,066.08 is: 196,057.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,789.28 : 354,379.78 = 142,066.08 : x
  2. Step 2: Convert to fraction form
    256,789.28/354,379.78 = 142,066.08/x
  3. Step 3: Cross multiply
    256,789.28x = 354,379.78 × 142,066.08
  4. Step 4: Simplify right side
    256,789.28x = 50,345,346,175.86
  5. Step 5: Solve for x
    x = 50,345,346,175.86/256,789.28
  6. Step 6: Final answer
    x = 196,057.04

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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.