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Finding the Fourth Proportional to 465.51, 697.66 and 191.29

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Solution

The fourth proportional to 465.51, 697.66 and 191.29 is: 286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.51 : 697.66 = 191.29 : x
  2. Step 2: Convert to fraction form
    465.51/697.66 = 191.29/x
  3. Step 3: Cross multiply
    465.51x = 697.66 × 191.29
  4. Step 4: Simplify right side
    465.51x = 133,455.38
  5. Step 5: Solve for x
    x = 133,455.38/465.51
  6. Step 6: Final answer
    x = 286.69

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