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Finding the Fourth Proportional to 613.36, 846.24 and 380.60

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Solution

The fourth proportional to 613.36, 846.24 and 380.60 is: 525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.36 : 846.24 = 380.60 : x
  2. Step 2: Convert to fraction form
    613.36/846.24 = 380.60/x
  3. Step 3: Cross multiply
    613.36x = 846.24 × 380.60
  4. Step 4: Simplify right side
    613.36x = 322,078.94
  5. Step 5: Solve for x
    x = 322,078.94/613.36
  6. Step 6: Final answer
    x = 525.11

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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.