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Finding the Fourth Proportional to 243.37, 336.12 and 202.36

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Solution

The fourth proportional to 243.37, 336.12 and 202.36 is: 279.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.37 : 336.12 = 202.36 : x
  2. Step 2: Convert to fraction form
    243.37/336.12 = 202.36/x
  3. Step 3: Cross multiply
    243.37x = 336.12 × 202.36
  4. Step 4: Simplify right side
    243.37x = 68,017.24
  5. Step 5: Solve for x
    x = 68,017.24/243.37
  6. Step 6: Final answer
    x = 279.49

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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.