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Finding the Fourth Proportional to 536.13, 803.65 and 211.05

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Solution

The fourth proportional to 536.13, 803.65 and 211.05 is: 316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.13 : 803.65 = 211.05 : x
  2. Step 2: Convert to fraction form
    536.13/803.65 = 211.05/x
  3. Step 3: Cross multiply
    536.13x = 803.65 × 211.05
  4. Step 4: Simplify right side
    536.13x = 169,610.33
  5. Step 5: Solve for x
    x = 169,610.33/536.13
  6. Step 6: Final answer
    x = 316.36

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