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Finding the Fourth Proportional to 352.19, 525.90 and 331.94

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Solution

The fourth proportional to 352.19, 525.90 and 331.94 is: 495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.19 : 525.90 = 331.94 : x
  2. Step 2: Convert to fraction form
    352.19/525.90 = 331.94/x
  3. Step 3: Cross multiply
    352.19x = 525.90 × 331.94
  4. Step 4: Simplify right side
    352.19x = 174,564.62
  5. Step 5: Solve for x
    x = 174,564.62/352.19
  6. Step 6: Final answer
    x = 495.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.