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Finding the Fourth Proportional to 213.99, 295.62 and 144.02

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Solution

The fourth proportional to 213.99, 295.62 and 144.02 is: 198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.99 : 295.62 = 144.02 : x
  2. Step 2: Convert to fraction form
    213.99/295.62 = 144.02/x
  3. Step 3: Cross multiply
    213.99x = 295.62 × 144.02
  4. Step 4: Simplify right side
    213.99x = 42,575.93
  5. Step 5: Solve for x
    x = 42,575.93/213.99
  6. Step 6: Final answer
    x = 198.96

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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.