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Finding the Fourth Proportional to 256,037.21, 353,331.13 and 142,859.96

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Solution

The fourth proportional to 256,037.21, 353,331.13 and 142,859.96 is: 197,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,037.21 : 353,331.13 = 142,859.96 : x
  2. Step 2: Convert to fraction form
    256,037.21/353,331.13 = 142,859.96/x
  3. Step 3: Cross multiply
    256,037.21x = 353,331.13 × 142,859.96
  4. Step 4: Simplify right side
    256,037.21x = 50,476,871,098.55
  5. Step 5: Solve for x
    x = 50,476,871,098.55/256,037.21
  6. Step 6: Final answer
    x = 197,146.62

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