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Finding the Fourth Proportional to 335.66, 463.47 and 219.38

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Solution

The fourth proportional to 335.66, 463.47 and 219.38 is: 302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.66 : 463.47 = 219.38 : x
  2. Step 2: Convert to fraction form
    335.66/463.47 = 219.38/x
  3. Step 3: Cross multiply
    335.66x = 463.47 × 219.38
  4. Step 4: Simplify right side
    335.66x = 101,676.05
  5. Step 5: Solve for x
    x = 101,676.05/335.66
  6. Step 6: Final answer
    x = 302.91

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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.