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Finding the Fourth Proportional to 310.12, 427.02 and 244.60

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Solution

The fourth proportional to 310.12, 427.02 and 244.60 is: 336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.12 : 427.02 = 244.60 : x
  2. Step 2: Convert to fraction form
    310.12/427.02 = 244.60/x
  3. Step 3: Cross multiply
    310.12x = 427.02 × 244.60
  4. Step 4: Simplify right side
    310.12x = 104,449.09
  5. Step 5: Solve for x
    x = 104,449.09/310.12
  6. Step 6: Final answer
    x = 336.80

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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.