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Finding the Fourth Proportional to 334.83, 461.79 and 256.26

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Solution

The fourth proportional to 334.83, 461.79 and 256.26 is: 353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.83 : 461.79 = 256.26 : x
  2. Step 2: Convert to fraction form
    334.83/461.79 = 256.26/x
  3. Step 3: Cross multiply
    334.83x = 461.79 × 256.26
  4. Step 4: Simplify right side
    334.83x = 118,338.31
  5. Step 5: Solve for x
    x = 118,338.31/334.83
  6. Step 6: Final answer
    x = 353.43

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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.