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Finding the Fourth Proportional to 613.28, 846.63 and 364.68

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Solution

The fourth proportional to 613.28, 846.63 and 364.68 is: 503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.28 : 846.63 = 364.68 : x
  2. Step 2: Convert to fraction form
    613.28/846.63 = 364.68/x
  3. Step 3: Cross multiply
    613.28x = 846.63 × 364.68
  4. Step 4: Simplify right side
    613.28x = 308,749.03
  5. Step 5: Solve for x
    x = 308,749.03/613.28
  6. Step 6: Final answer
    x = 503.44

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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.