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Finding the Fourth Proportional to 335.58, 462.39 and 257.82

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Solution

The fourth proportional to 335.58, 462.39 and 257.82 is: 355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.58 : 462.39 = 257.82 : x
  2. Step 2: Convert to fraction form
    335.58/462.39 = 257.82/x
  3. Step 3: Cross multiply
    335.58x = 462.39 × 257.82
  4. Step 4: Simplify right side
    335.58x = 119,213.39
  5. Step 5: Solve for x
    x = 119,213.39/335.58
  6. Step 6: Final answer
    x = 355.25

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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.