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Finding the Fourth Proportional to 335.20, 468.20 and 335.20

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Solution

The fourth proportional to 335.20, 468.20 and 335.20 is: 468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.20 : 468.20 = 335.20 : x
  2. Step 2: Convert to fraction form
    335.20/468.20 = 335.20/x
  3. Step 3: Cross multiply
    335.20x = 468.20 × 335.20
  4. Step 4: Simplify right side
    335.20x = 156,940.64
  5. Step 5: Solve for x
    x = 156,940.64/335.20
  6. Step 6: Final answer
    x = 468.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.