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Finding the Fourth Proportional to 336.19, 465.92 and 331.07

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Solution

The fourth proportional to 336.19, 465.92 and 331.07 is: 458.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.19 : 465.92 = 331.07 : x
  2. Step 2: Convert to fraction form
    336.19/465.92 = 331.07/x
  3. Step 3: Cross multiply
    336.19x = 465.92 × 331.07
  4. Step 4: Simplify right side
    336.19x = 154,252.13
  5. Step 5: Solve for x
    x = 154,252.13/336.19
  6. Step 6: Final answer
    x = 458.82

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.