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Finding the Fourth Proportional to 350.44, 525.84 and 220.18

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Solution

The fourth proportional to 350.44, 525.84 and 220.18 is: 330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.44 : 525.84 = 220.18 : x
  2. Step 2: Convert to fraction form
    350.44/525.84 = 220.18/x
  3. Step 3: Cross multiply
    350.44x = 525.84 × 220.18
  4. Step 4: Simplify right side
    350.44x = 115,779.45
  5. Step 5: Solve for x
    x = 115,779.45/350.44
  6. Step 6: Final answer
    x = 330.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.