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Finding the Fourth Proportional to 277.01, 415.52 and 103.67

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Solution

The fourth proportional to 277.01, 415.52 and 103.67 is: 155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.01 : 415.52 = 103.67 : x
  2. Step 2: Convert to fraction form
    277.01/415.52 = 103.67/x
  3. Step 3: Cross multiply
    277.01x = 415.52 × 103.67
  4. Step 4: Simplify right side
    277.01x = 43,076.44
  5. Step 5: Solve for x
    x = 43,076.44/277.01
  6. Step 6: Final answer
    x = 155.51

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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.