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Finding the Fourth Proportional to 629.33, 868.21 and 360.01

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Solution

The fourth proportional to 629.33, 868.21 and 360.01 is: 496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.33 : 868.21 = 360.01 : x
  2. Step 2: Convert to fraction form
    629.33/868.21 = 360.01/x
  3. Step 3: Cross multiply
    629.33x = 868.21 × 360.01
  4. Step 4: Simplify right side
    629.33x = 312,561.21
  5. Step 5: Solve for x
    x = 312,561.21/629.33
  6. Step 6: Final answer
    x = 496.66

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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.