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Finding the Fourth Proportional to 333.45, 460.17 and 209.19

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Solution

The fourth proportional to 333.45, 460.17 and 209.19 is: 288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.45 : 460.17 = 209.19 : x
  2. Step 2: Convert to fraction form
    333.45/460.17 = 209.19/x
  3. Step 3: Cross multiply
    333.45x = 460.17 × 209.19
  4. Step 4: Simplify right side
    333.45x = 96,262.96
  5. Step 5: Solve for x
    x = 96,262.96/333.45
  6. Step 6: Final answer
    x = 288.69

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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.