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Finding the Fourth Proportional to 361.25, 538.46 and 322.00

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Solution

The fourth proportional to 361.25, 538.46 and 322.00 is: 479.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.25 : 538.46 = 322.00 : x
  2. Step 2: Convert to fraction form
    361.25/538.46 = 322.00/x
  3. Step 3: Cross multiply
    361.25x = 538.46 × 322.00
  4. Step 4: Simplify right side
    361.25x = 173,383.58
  5. Step 5: Solve for x
    x = 173,383.58/361.25
  6. Step 6: Final answer
    x = 479.96

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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.