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Finding the Fourth Proportional to 361.33, 539.09 and 322.35

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Solution

The fourth proportional to 361.33, 539.09 and 322.35 is: 480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.33 : 539.09 = 322.35 : x
  2. Step 2: Convert to fraction form
    361.33/539.09 = 322.35/x
  3. Step 3: Cross multiply
    361.33x = 539.09 × 322.35
  4. Step 4: Simplify right side
    361.33x = 173,775.66
  5. Step 5: Solve for x
    x = 173,775.66/361.33
  6. Step 6: Final answer
    x = 480.93

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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.