Home / 277,721.11-383,146.62-161,415.25

Finding the Fourth Proportional to 277,721.11, 383,146.62 and 161,415.25

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Solution

The fourth proportional to 277,721.11, 383,146.62 and 161,415.25 is: 222,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,721.11 : 383,146.62 = 161,415.25 : x
  2. Step 2: Convert to fraction form
    277,721.11/383,146.62 = 161,415.25/x
  3. Step 3: Cross multiply
    277,721.11x = 383,146.62 × 161,415.25
  4. Step 4: Simplify right side
    277,721.11x = 61,845,707,453.96
  5. Step 5: Solve for x
    x = 61,845,707,453.96/277,721.11
  6. Step 6: Final answer
    x = 222,689.98

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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.