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Finding the Fourth Proportional to 459.33, 634.43 and 334.79

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Solution

The fourth proportional to 459.33, 634.43 and 334.79 is: 462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.33 : 634.43 = 334.79 : x
  2. Step 2: Convert to fraction form
    459.33/634.43 = 334.79/x
  3. Step 3: Cross multiply
    459.33x = 634.43 × 334.79
  4. Step 4: Simplify right side
    459.33x = 212,399.15
  5. Step 5: Solve for x
    x = 212,399.15/459.33
  6. Step 6: Final answer
    x = 462.41

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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.