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Finding the Fourth Proportional to 243.06, 364.75 and 114.82

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Solution

The fourth proportional to 243.06, 364.75 and 114.82 is: 172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.06 : 364.75 = 114.82 : x
  2. Step 2: Convert to fraction form
    243.06/364.75 = 114.82/x
  3. Step 3: Cross multiply
    243.06x = 364.75 × 114.82
  4. Step 4: Simplify right side
    243.06x = 41,880.60
  5. Step 5: Solve for x
    x = 41,880.60/243.06
  6. Step 6: Final answer
    x = 172.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.