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Finding the Fourth Proportional to 652.51, 978.76 and 165.56

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Solution

The fourth proportional to 652.51, 978.76 and 165.56 is: 248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.51 : 978.76 = 165.56 : x
  2. Step 2: Convert to fraction form
    652.51/978.76 = 165.56/x
  3. Step 3: Cross multiply
    652.51x = 978.76 × 165.56
  4. Step 4: Simplify right side
    652.51x = 162,038.82
  5. Step 5: Solve for x
    x = 162,038.82/652.51
  6. Step 6: Final answer
    x = 248.33

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