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Finding the Fourth Proportional to 256,507.83, 353,979.72 and 143,330.58

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Solution

The fourth proportional to 256,507.83, 353,979.72 and 143,330.58 is: 197,795.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,507.83 : 353,979.72 = 143,330.58 : x
  2. Step 2: Convert to fraction form
    256,507.83/353,979.72 = 143,330.58/x
  3. Step 3: Cross multiply
    256,507.83x = 353,979.72 × 143,330.58
  4. Step 4: Simplify right side
    256,507.83x = 50,736,118,575.84
  5. Step 5: Solve for x
    x = 50,736,118,575.84/256,507.83
  6. Step 6: Final answer
    x = 197,795.59

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