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Finding the Fourth Proportional to 277.76, 383.64 and 195.08

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Solution

The fourth proportional to 277.76, 383.64 and 195.08 is: 269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.76 : 383.64 = 195.08 : x
  2. Step 2: Convert to fraction form
    277.76/383.64 = 195.08/x
  3. Step 3: Cross multiply
    277.76x = 383.64 × 195.08
  4. Step 4: Simplify right side
    277.76x = 74,840.49
  5. Step 5: Solve for x
    x = 74,840.49/277.76
  6. Step 6: Final answer
    x = 269.44

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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.