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Finding the Fourth Proportional to 350.67, 526.20 and 165.54

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Solution

The fourth proportional to 350.67, 526.20 and 165.54 is: 248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.67 : 526.20 = 165.54 : x
  2. Step 2: Convert to fraction form
    350.67/526.20 = 165.54/x
  3. Step 3: Cross multiply
    350.67x = 526.20 × 165.54
  4. Step 4: Simplify right side
    350.67x = 87,107.15
  5. Step 5: Solve for x
    x = 87,107.15/350.67
  6. Step 6: Final answer
    x = 248.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.