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Finding the Fourth Proportional to 351.85, 527.93 and 189.34

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Solution

The fourth proportional to 351.85, 527.93 and 189.34 is: 284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.85 : 527.93 = 189.34 : x
  2. Step 2: Convert to fraction form
    351.85/527.93 = 189.34/x
  3. Step 3: Cross multiply
    351.85x = 527.93 × 189.34
  4. Step 4: Simplify right side
    351.85x = 99,958.27
  5. Step 5: Solve for x
    x = 99,958.27/351.85
  6. Step 6: Final answer
    x = 284.09

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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.