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Finding the Fourth Proportional to 292.08, 438.54 and 211.32

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Solution

The fourth proportional to 292.08, 438.54 and 211.32 is: 317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.08 : 438.54 = 211.32 : x
  2. Step 2: Convert to fraction form
    292.08/438.54 = 211.32/x
  3. Step 3: Cross multiply
    292.08x = 438.54 × 211.32
  4. Step 4: Simplify right side
    292.08x = 92,672.27
  5. Step 5: Solve for x
    x = 92,672.27/292.08
  6. Step 6: Final answer
    x = 317.28

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