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Finding the Fourth Proportional to 459.81, 634.55 and 273.39

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Solution

The fourth proportional to 459.81, 634.55 and 273.39 is: 377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.81 : 634.55 = 273.39 : x
  2. Step 2: Convert to fraction form
    459.81/634.55 = 273.39/x
  3. Step 3: Cross multiply
    459.81x = 634.55 × 273.39
  4. Step 4: Simplify right side
    459.81x = 173,478.26
  5. Step 5: Solve for x
    x = 173,478.26/459.81
  6. Step 6: Final answer
    x = 377.28

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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.