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Finding the Fourth Proportional to 313.08, 469.54 and 142.04

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Solution

The fourth proportional to 313.08, 469.54 and 142.04 is: 213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.08 : 469.54 = 142.04 : x
  2. Step 2: Convert to fraction form
    313.08/469.54 = 142.04/x
  3. Step 3: Cross multiply
    313.08x = 469.54 × 142.04
  4. Step 4: Simplify right side
    313.08x = 66,693.46
  5. Step 5: Solve for x
    x = 66,693.46/313.08
  6. Step 6: Final answer
    x = 213.02

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