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Finding the Fourth Proportional to 365.76, 547.62 and 288.36

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Solution

The fourth proportional to 365.76, 547.62 and 288.36 is: 431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.76 : 547.62 = 288.36 : x
  2. Step 2: Convert to fraction form
    365.76/547.62 = 288.36/x
  3. Step 3: Cross multiply
    365.76x = 547.62 × 288.36
  4. Step 4: Simplify right side
    365.76x = 157,911.70
  5. Step 5: Solve for x
    x = 157,911.70/365.76
  6. Step 6: Final answer
    x = 431.74

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