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Finding the Fourth Proportional to 256,235.88, 353,590.66 and 143,065.80

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Solution

The fourth proportional to 256,235.88, 353,590.66 and 143,065.80 is: 197,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,235.88 : 353,590.66 = 143,065.80 : x
  2. Step 2: Convert to fraction form
    256,235.88/353,590.66 = 143,065.80/x
  3. Step 3: Cross multiply
    256,235.88x = 353,590.66 × 143,065.80
  4. Step 4: Simplify right side
    256,235.88x = 50,586,730,645.43
  5. Step 5: Solve for x
    x = 50,586,730,645.43/256,235.88
  6. Step 6: Final answer
    x = 197,422.51

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