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Finding the Fourth Proportional to 351.41, 484.52 and 258.17

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Solution

The fourth proportional to 351.41, 484.52 and 258.17 is: 355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.41 : 484.52 = 258.17 : x
  2. Step 2: Convert to fraction form
    351.41/484.52 = 258.17/x
  3. Step 3: Cross multiply
    351.41x = 484.52 × 258.17
  4. Step 4: Simplify right side
    351.41x = 125,084.81
  5. Step 5: Solve for x
    x = 125,084.81/351.41
  6. Step 6: Final answer
    x = 355.96

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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.