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Finding the Fourth Proportional to 628.52, 941.94 and 354.50

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Solution

The fourth proportional to 628.52, 941.94 and 354.50 is: 531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.52 : 941.94 = 354.50 : x
  2. Step 2: Convert to fraction form
    628.52/941.94 = 354.50/x
  3. Step 3: Cross multiply
    628.52x = 941.94 × 354.50
  4. Step 4: Simplify right side
    628.52x = 333,917.73
  5. Step 5: Solve for x
    x = 333,917.73/628.52
  6. Step 6: Final answer
    x = 531.28

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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.