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Finding the Fourth Proportional to 351.70, 484.80 and 235.06

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Solution

The fourth proportional to 351.70, 484.80 and 235.06 is: 324.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.70 : 484.80 = 235.06 : x
  2. Step 2: Convert to fraction form
    351.70/484.80 = 235.06/x
  3. Step 3: Cross multiply
    351.70x = 484.80 × 235.06
  4. Step 4: Simplify right side
    351.70x = 113,957.09
  5. Step 5: Solve for x
    x = 113,957.09/351.70
  6. Step 6: Final answer
    x = 324.02

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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.