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Finding the Fourth Proportional to 611.31, 843.56 and 362.69

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Solution

The fourth proportional to 611.31, 843.56 and 362.69 is: 500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.31 : 843.56 = 362.69 : x
  2. Step 2: Convert to fraction form
    611.31/843.56 = 362.69/x
  3. Step 3: Cross multiply
    611.31x = 843.56 × 362.69
  4. Step 4: Simplify right side
    611.31x = 305,956.05
  5. Step 5: Solve for x
    x = 305,956.05/611.31
  6. Step 6: Final answer
    x = 500.49

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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.