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Finding the Fourth Proportional to 582.21, 804.07 and 361.68

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Solution

The fourth proportional to 582.21, 804.07 and 361.68 is: 499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.21 : 804.07 = 361.68 : x
  2. Step 2: Convert to fraction form
    582.21/804.07 = 361.68/x
  3. Step 3: Cross multiply
    582.21x = 804.07 × 361.68
  4. Step 4: Simplify right side
    582.21x = 290,816.04
  5. Step 5: Solve for x
    x = 290,816.04/582.21
  6. Step 6: Final answer
    x = 499.51

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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.