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Finding the Fourth Proportional to 458.19, 632.25 and 261.72

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Solution

The fourth proportional to 458.19, 632.25 and 261.72 is: 361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.19 : 632.25 = 261.72 : x
  2. Step 2: Convert to fraction form
    458.19/632.25 = 261.72/x
  3. Step 3: Cross multiply
    458.19x = 632.25 × 261.72
  4. Step 4: Simplify right side
    458.19x = 165,472.47
  5. Step 5: Solve for x
    x = 165,472.47/458.19
  6. Step 6: Final answer
    x = 361.14

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