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Finding the Fourth Proportional to 277.66, 383.43 and 174.34

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Solution

The fourth proportional to 277.66, 383.43 and 174.34 is: 240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.66 : 383.43 = 174.34 : x
  2. Step 2: Convert to fraction form
    277.66/383.43 = 174.34/x
  3. Step 3: Cross multiply
    277.66x = 383.43 × 174.34
  4. Step 4: Simplify right side
    277.66x = 66,847.19
  5. Step 5: Solve for x
    x = 66,847.19/277.66
  6. Step 6: Final answer
    x = 240.75

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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.