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Finding the Fourth Proportional to 277.94, 383.60 and 179.80

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Solution

The fourth proportional to 277.94, 383.60 and 179.80 is: 248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.94 : 383.60 = 179.80 : x
  2. Step 2: Convert to fraction form
    277.94/383.60 = 179.80/x
  3. Step 3: Cross multiply
    277.94x = 383.60 × 179.80
  4. Step 4: Simplify right side
    277.94x = 68,971.28
  5. Step 5: Solve for x
    x = 68,971.28/277.94
  6. Step 6: Final answer
    x = 248.15

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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.