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Finding the Fourth Proportional to 350.18, 483.15 and 219.09

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Solution

The fourth proportional to 350.18, 483.15 and 219.09 is: 302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.18 : 483.15 = 219.09 : x
  2. Step 2: Convert to fraction form
    350.18/483.15 = 219.09/x
  3. Step 3: Cross multiply
    350.18x = 483.15 × 219.09
  4. Step 4: Simplify right side
    350.18x = 105,853.33
  5. Step 5: Solve for x
    x = 105,853.33/350.18
  6. Step 6: Final answer
    x = 302.28

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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.