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Finding the Fourth Proportional to 615.98, 850.07 and 336.21

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Solution

The fourth proportional to 615.98, 850.07 and 336.21 is: 463.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.98 : 850.07 = 336.21 : x
  2. Step 2: Convert to fraction form
    615.98/850.07 = 336.21/x
  3. Step 3: Cross multiply
    615.98x = 850.07 × 336.21
  4. Step 4: Simplify right side
    615.98x = 285,799.69
  5. Step 5: Solve for x
    x = 285,799.69/615.98
  6. Step 6: Final answer
    x = 463.97

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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.