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Finding the Fourth Proportional to 908.21, 1,360.40 and 600.21

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Solution

The fourth proportional to 908.21, 1,360.40 and 600.21 is: 899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.21 : 1,360.40 = 600.21 : x
  2. Step 2: Convert to fraction form
    908.21/1,360.40 = 600.21/x
  3. Step 3: Cross multiply
    908.21x = 1,360.40 × 600.21
  4. Step 4: Simplify right side
    908.21x = 816,522.68
  5. Step 5: Solve for x
    x = 816,522.68/908.21
  6. Step 6: Final answer
    x = 899.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.