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Finding the Fourth Proportional to 335.12, 462.64 and 211.10

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Solution

The fourth proportional to 335.12, 462.64 and 211.10 is: 291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.12 : 462.64 = 211.10 : x
  2. Step 2: Convert to fraction form
    335.12/462.64 = 211.10/x
  3. Step 3: Cross multiply
    335.12x = 462.64 × 211.10
  4. Step 4: Simplify right side
    335.12x = 97,663.30
  5. Step 5: Solve for x
    x = 97,663.30/335.12
  6. Step 6: Final answer
    x = 291.43

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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.