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Finding the Fourth Proportional to 256,850.38, 354,434.26 and 143,651.26

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Solution

The fourth proportional to 256,850.38, 354,434.26 and 143,651.26 is: 198,227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,850.38 : 354,434.26 = 143,651.26 : x
  2. Step 2: Convert to fraction form
    256,850.38/354,434.26 = 143,651.26/x
  3. Step 3: Cross multiply
    256,850.38x = 354,434.26 × 143,651.26
  4. Step 4: Simplify right side
    256,850.38x = 50,914,928,036.17
  5. Step 5: Solve for x
    x = 50,914,928,036.17/256,850.38
  6. Step 6: Final answer
    x = 198,227.96

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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.