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Finding the Fourth Proportional to 336.17, 463.39 and 243.09

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Solution

The fourth proportional to 336.17, 463.39 and 243.09 is: 335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.17 : 463.39 = 243.09 : x
  2. Step 2: Convert to fraction form
    336.17/463.39 = 243.09/x
  3. Step 3: Cross multiply
    336.17x = 463.39 × 243.09
  4. Step 4: Simplify right side
    336.17x = 112,644.87
  5. Step 5: Solve for x
    x = 112,644.87/336.17
  6. Step 6: Final answer
    x = 335.08

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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.