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Finding the Fourth Proportional to 575.16, 862.73 and 142.32

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Solution

The fourth proportional to 575.16, 862.73 and 142.32 is: 213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.16 : 862.73 = 142.32 : x
  2. Step 2: Convert to fraction form
    575.16/862.73 = 142.32/x
  3. Step 3: Cross multiply
    575.16x = 862.73 × 142.32
  4. Step 4: Simplify right side
    575.16x = 122,779.42
  5. Step 5: Solve for x
    x = 122,779.42/575.16
  6. Step 6: Final answer
    x = 213.47

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