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Finding the Fourth Proportional to 458.79, 688.39 and 184.81

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Solution

The fourth proportional to 458.79, 688.39 and 184.81 is: 277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.79 : 688.39 = 184.81 : x
  2. Step 2: Convert to fraction form
    458.79/688.39 = 184.81/x
  3. Step 3: Cross multiply
    458.79x = 688.39 × 184.81
  4. Step 4: Simplify right side
    458.79x = 127,219.17
  5. Step 5: Solve for x
    x = 127,219.17/458.79
  6. Step 6: Final answer
    x = 277.29

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