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Finding the Fourth Proportional to 350.22, 524.87 and 144.55

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Solution

The fourth proportional to 350.22, 524.87 and 144.55 is: 216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.22 : 524.87 = 144.55 : x
  2. Step 2: Convert to fraction form
    350.22/524.87 = 144.55/x
  3. Step 3: Cross multiply
    350.22x = 524.87 × 144.55
  4. Step 4: Simplify right side
    350.22x = 75,866.61
  5. Step 5: Solve for x
    x = 75,866.61/350.22
  6. Step 6: Final answer
    x = 216.63

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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.