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Finding the Fourth Proportional to 468, 645.90 and 261.04

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Solution

The fourth proportional to 468, 645.90 and 261.04 is: 360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    468 : 645.90 = 261.04 : x
  2. Step 2: Convert to fraction form
    468/645.90 = 261.04/x
  3. Step 3: Cross multiply
    468x = 645.90 × 261.04
  4. Step 4: Simplify right side
    468x = 168,605.74
  5. Step 5: Solve for x
    x = 168,605.74/468
  6. Step 6: Final answer
    x = 360.27

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