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Finding the Fourth Proportional to 526.85, 789.98 and 161.54

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Solution

The fourth proportional to 526.85, 789.98 and 161.54 is: 242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.85 : 789.98 = 161.54 : x
  2. Step 2: Convert to fraction form
    526.85/789.98 = 161.54/x
  3. Step 3: Cross multiply
    526.85x = 789.98 × 161.54
  4. Step 4: Simplify right side
    526.85x = 127,609.82
  5. Step 5: Solve for x
    x = 127,609.82/526.85
  6. Step 6: Final answer
    x = 242.22

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