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Finding the Fourth Proportional to 271,751.36, 405,797.04 and 221,930.28

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Solution

The fourth proportional to 271,751.36, 405,797.04 and 221,930.28 is: 331,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,751.36 : 405,797.04 = 221,930.28 : x
  2. Step 2: Convert to fraction form
    271,751.36/405,797.04 = 221,930.28/x
  3. Step 3: Cross multiply
    271,751.36x = 405,797.04 × 221,930.28
  4. Step 4: Simplify right side
    271,751.36x = 90,058,650,710.37
  5. Step 5: Solve for x
    x = 90,058,650,710.37/271,751.36
  6. Step 6: Final answer
    x = 331,400.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.