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Finding the Fourth Proportional to 421,196.64, 581,291.16 and 230,238.36

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Solution

The fourth proportional to 421,196.64, 581,291.16 and 230,238.36 is: 317,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,196.64 : 581,291.16 = 230,238.36 : x
  2. Step 2: Convert to fraction form
    421,196.64/581,291.16 = 230,238.36/x
  3. Step 3: Cross multiply
    421,196.64x = 581,291.16 × 230,238.36
  4. Step 4: Simplify right side
    421,196.64x = 133,835,523,360.90
  5. Step 5: Solve for x
    x = 133,835,523,360.90/421,196.64
  6. Step 6: Final answer
    x = 317,750.69

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