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Finding the Fourth Proportional to 460.35, 690.60 and 171.81

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Solution

The fourth proportional to 460.35, 690.60 and 171.81 is: 257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.35 : 690.60 = 171.81 : x
  2. Step 2: Convert to fraction form
    460.35/690.60 = 171.81/x
  3. Step 3: Cross multiply
    460.35x = 690.60 × 171.81
  4. Step 4: Simplify right side
    460.35x = 118,651.99
  5. Step 5: Solve for x
    x = 118,651.99/460.35
  6. Step 6: Final answer
    x = 257.74

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