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Finding the Fourth Proportional to 336.36, 463.94 and 308.82

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Solution

The fourth proportional to 336.36, 463.94 and 308.82 is: 425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.36 : 463.94 = 308.82 : x
  2. Step 2: Convert to fraction form
    336.36/463.94 = 308.82/x
  3. Step 3: Cross multiply
    336.36x = 463.94 × 308.82
  4. Step 4: Simplify right side
    336.36x = 143,273.95
  5. Step 5: Solve for x
    x = 143,273.95/336.36
  6. Step 6: Final answer
    x = 425.95

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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.