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Finding the Fourth Proportional to 351.12, 484.47 and 235.02

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Solution

The fourth proportional to 351.12, 484.47 and 235.02 is: 324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.12 : 484.47 = 235.02 : x
  2. Step 2: Convert to fraction form
    351.12/484.47 = 235.02/x
  3. Step 3: Cross multiply
    351.12x = 484.47 × 235.02
  4. Step 4: Simplify right side
    351.12x = 113,860.14
  5. Step 5: Solve for x
    x = 113,860.14/351.12
  6. Step 6: Final answer
    x = 324.28

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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.