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Finding the Fourth Proportional to 351.18, 526.54 and 134.78

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Solution

The fourth proportional to 351.18, 526.54 and 134.78 is: 202.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.18 : 526.54 = 134.78 : x
  2. Step 2: Convert to fraction form
    351.18/526.54 = 134.78/x
  3. Step 3: Cross multiply
    351.18x = 526.54 × 134.78
  4. Step 4: Simplify right side
    351.18x = 70,967.06
  5. Step 5: Solve for x
    x = 70,967.06/351.18
  6. Step 6: Final answer
    x = 202.08

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