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Finding the Fourth Proportional to 256,505.30, 353,966.25 and 141,777.98

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Solution

The fourth proportional to 256,505.30, 353,966.25 and 141,777.98 is: 195,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,505.30 : 353,966.25 = 141,777.98 : x
  2. Step 2: Convert to fraction form
    256,505.30/353,966.25 = 141,777.98/x
  3. Step 3: Cross multiply
    256,505.30x = 353,966.25 × 141,777.98
  4. Step 4: Simplify right side
    256,505.30x = 50,184,619,913.18
  5. Step 5: Solve for x
    x = 50,184,619,913.18/256,505.30
  6. Step 6: Final answer
    x = 195,647.50

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