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Finding the Fourth Proportional to 335.15, 462.26 and 223.16

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Solution

The fourth proportional to 335.15, 462.26 and 223.16 is: 307.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.15 : 462.26 = 223.16 : x
  2. Step 2: Convert to fraction form
    335.15/462.26 = 223.16/x
  3. Step 3: Cross multiply
    335.15x = 462.26 × 223.16
  4. Step 4: Simplify right side
    335.15x = 103,159.66
  5. Step 5: Solve for x
    x = 103,159.66/335.15
  6. Step 6: Final answer
    x = 307.81

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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.