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Finding the Fourth Proportional to 305,544.77, 421,645.44 and 169,570.82

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Solution

The fourth proportional to 305,544.77, 421,645.44 and 169,570.82 is: 234,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,544.77 : 421,645.44 = 169,570.82 : x
  2. Step 2: Convert to fraction form
    305,544.77/421,645.44 = 169,570.82/x
  3. Step 3: Cross multiply
    305,544.77x = 421,645.44 × 169,570.82
  4. Step 4: Simplify right side
    305,544.77x = 71,498,763,010.06
  5. Step 5: Solve for x
    x = 71,498,763,010.06/305,544.77
  6. Step 6: Final answer
    x = 234,004.21

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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.