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Finding the Fourth Proportional to 336.89, 465.16 and 331.51

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Solution

The fourth proportional to 336.89, 465.16 and 331.51 is: 457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.89 : 465.16 = 331.51 : x
  2. Step 2: Convert to fraction form
    336.89/465.16 = 331.51/x
  3. Step 3: Cross multiply
    336.89x = 465.16 × 331.51
  4. Step 4: Simplify right side
    336.89x = 154,206.69
  5. Step 5: Solve for x
    x = 154,206.69/336.89
  6. Step 6: Final answer
    x = 457.73

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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.