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Finding the Fourth Proportional to 256,249.56, 384,374.45 and 69,261.06

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Solution

The fourth proportional to 256,249.56, 384,374.45 and 69,261.06 is: 103,891.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,249.56 : 384,374.45 = 69,261.06 : x
  2. Step 2: Convert to fraction form
    256,249.56/384,374.45 = 69,261.06/x
  3. Step 3: Cross multiply
    256,249.56x = 384,374.45 × 69,261.06
  4. Step 4: Simplify right side
    256,249.56x = 26,622,181,843.92
  5. Step 5: Solve for x
    x = 26,622,181,843.92/256,249.56
  6. Step 6: Final answer
    x = 103,891.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.