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Finding the Fourth Proportional to 351.52, 484.69 and 292.57

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Solution

The fourth proportional to 351.52, 484.69 and 292.57 is: 403.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.52 : 484.69 = 292.57 : x
  2. Step 2: Convert to fraction form
    351.52/484.69 = 292.57/x
  3. Step 3: Cross multiply
    351.52x = 484.69 × 292.57
  4. Step 4: Simplify right side
    351.52x = 141,805.75
  5. Step 5: Solve for x
    x = 141,805.75/351.52
  6. Step 6: Final answer
    x = 403.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.