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Finding the Fourth Proportional to 557.82, 833.36 and 361.22

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Solution

The fourth proportional to 557.82, 833.36 and 361.22 is: 539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.82 : 833.36 = 361.22 : x
  2. Step 2: Convert to fraction form
    557.82/833.36 = 361.22/x
  3. Step 3: Cross multiply
    557.82x = 833.36 × 361.22
  4. Step 4: Simplify right side
    557.82x = 301,026.30
  5. Step 5: Solve for x
    x = 301,026.30/557.82
  6. Step 6: Final answer
    x = 539.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.