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Finding the Fourth Proportional to 459.73, 634.39 and 270.64

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Solution

The fourth proportional to 459.73, 634.39 and 270.64 is: 373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.73 : 634.39 = 270.64 : x
  2. Step 2: Convert to fraction form
    459.73/634.39 = 270.64/x
  3. Step 3: Cross multiply
    459.73x = 634.39 × 270.64
  4. Step 4: Simplify right side
    459.73x = 171,691.88
  5. Step 5: Solve for x
    x = 171,691.88/459.73
  6. Step 6: Final answer
    x = 373.46

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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.