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Finding the Fourth Proportional to 265.02, 397.43 and 91.64

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Solution

The fourth proportional to 265.02, 397.43 and 91.64 is: 137.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.02 : 397.43 = 91.64 : x
  2. Step 2: Convert to fraction form
    265.02/397.43 = 91.64/x
  3. Step 3: Cross multiply
    265.02x = 397.43 × 91.64
  4. Step 4: Simplify right side
    265.02x = 36,421.71
  5. Step 5: Solve for x
    x = 36,421.71/265.02
  6. Step 6: Final answer
    x = 137.43

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