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Finding the Fourth Proportional to 611.18, 843.43 and 362.62

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Solution

The fourth proportional to 611.18, 843.43 and 362.62 is: 500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.18 : 843.43 = 362.62 : x
  2. Step 2: Convert to fraction form
    611.18/843.43 = 362.62/x
  3. Step 3: Cross multiply
    611.18x = 843.43 × 362.62
  4. Step 4: Simplify right side
    611.18x = 305,844.59
  5. Step 5: Solve for x
    x = 305,844.59/611.18
  6. Step 6: Final answer
    x = 500.42

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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.