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Finding the Fourth Proportional to 577.82, 797.12 and 356.69

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Solution

The fourth proportional to 577.82, 797.12 and 356.69 is: 492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.82 : 797.12 = 356.69 : x
  2. Step 2: Convert to fraction form
    577.82/797.12 = 356.69/x
  3. Step 3: Cross multiply
    577.82x = 797.12 × 356.69
  4. Step 4: Simplify right side
    577.82x = 284,318.96
  5. Step 5: Solve for x
    x = 284,318.96/577.82
  6. Step 6: Final answer
    x = 492.06

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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.