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Finding the Fourth Proportional to 615.78, 850.08 and 367.18

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Solution

The fourth proportional to 615.78, 850.08 and 367.18 is: 506.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.78 : 850.08 = 367.18 : x
  2. Step 2: Convert to fraction form
    615.78/850.08 = 367.18/x
  3. Step 3: Cross multiply
    615.78x = 850.08 × 367.18
  4. Step 4: Simplify right side
    615.78x = 312,132.37
  5. Step 5: Solve for x
    x = 312,132.37/615.78
  6. Step 6: Final answer
    x = 506.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.