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Finding the Fourth Proportional to 459.77, 634.27 and 273.13

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Solution

The fourth proportional to 459.77, 634.27 and 273.13 is: 376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.77 : 634.27 = 273.13 : x
  2. Step 2: Convert to fraction form
    459.77/634.27 = 273.13/x
  3. Step 3: Cross multiply
    459.77x = 634.27 × 273.13
  4. Step 4: Simplify right side
    459.77x = 173,238.17
  5. Step 5: Solve for x
    x = 173,238.17/459.77
  6. Step 6: Final answer
    x = 376.79

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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.