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Finding the Fourth Proportional to 256,079.94, 353,399.94 and 142,924.56

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Solution

The fourth proportional to 256,079.94, 353,399.94 and 142,924.56 is: 197,241.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,079.94 : 353,399.94 = 142,924.56 : x
  2. Step 2: Convert to fraction form
    256,079.94/353,399.94 = 142,924.56/x
  3. Step 3: Cross multiply
    256,079.94x = 353,399.94 × 142,924.56
  4. Step 4: Simplify right side
    256,079.94x = 50,509,530,928.53
  5. Step 5: Solve for x
    x = 50,509,530,928.53/256,079.94
  6. Step 6: Final answer
    x = 197,241.26

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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.