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Finding the Fourth Proportional to 382.62, 577.30 and 369.02

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Solution

The fourth proportional to 382.62, 577.30 and 369.02 is: 556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.62 : 577.30 = 369.02 : x
  2. Step 2: Convert to fraction form
    382.62/577.30 = 369.02/x
  3. Step 3: Cross multiply
    382.62x = 577.30 × 369.02
  4. Step 4: Simplify right side
    382.62x = 213,035.25
  5. Step 5: Solve for x
    x = 213,035.25/382.62
  6. Step 6: Final answer
    x = 556.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.