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Finding the Fourth Proportional to 577.35, 796.33 and 356.42

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Solution

The fourth proportional to 577.35, 796.33 and 356.42 is: 491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.35 : 796.33 = 356.42 : x
  2. Step 2: Convert to fraction form
    577.35/796.33 = 356.42/x
  3. Step 3: Cross multiply
    577.35x = 796.33 × 356.42
  4. Step 4: Simplify right side
    577.35x = 283,827.94
  5. Step 5: Solve for x
    x = 283,827.94/577.35
  6. Step 6: Final answer
    x = 491.60

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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.