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Finding the Fourth Proportional to 277,791.54, 383,324.93 and 155,261.30

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Solution

The fourth proportional to 277,791.54, 383,324.93 and 155,261.30 is: 214,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,791.54 : 383,324.93 = 155,261.30 : x
  2. Step 2: Convert to fraction form
    277,791.54/383,324.93 = 155,261.30/x
  3. Step 3: Cross multiply
    277,791.54x = 383,324.93 × 155,261.30
  4. Step 4: Simplify right side
    277,791.54x = 59,515,526,954.21
  5. Step 5: Solve for x
    x = 59,515,526,954.21/277,791.54
  6. Step 6: Final answer
    x = 214,245.28

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1.5x scale

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.