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Finding the Fourth Proportional to 277.51, 416.46 and 179.77

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Solution

The fourth proportional to 277.51, 416.46 and 179.77 is: 269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.51 : 416.46 = 179.77 : x
  2. Step 2: Convert to fraction form
    277.51/416.46 = 179.77/x
  3. Step 3: Cross multiply
    277.51x = 416.46 × 179.77
  4. Step 4: Simplify right side
    277.51x = 74,865.52
  5. Step 5: Solve for x
    x = 74,865.52/277.51
  6. Step 6: Final answer
    x = 269.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.