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Finding the Fourth Proportional to 310.72, 427.04 and 241.60

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Solution

The fourth proportional to 310.72, 427.04 and 241.60 is: 332.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.72 : 427.04 = 241.60 : x
  2. Step 2: Convert to fraction form
    310.72/427.04 = 241.60/x
  3. Step 3: Cross multiply
    310.72x = 427.04 × 241.60
  4. Step 4: Simplify right side
    310.72x = 103,172.86
  5. Step 5: Solve for x
    x = 103,172.86/310.72
  6. Step 6: Final answer
    x = 332.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.