Home / 305,608.07-422,026.31-196,903.23

Finding the Fourth Proportional to 305,608.07, 422,026.31 and 196,903.23

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Solution

The fourth proportional to 305,608.07, 422,026.31 and 196,903.23 is: 271,911.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,608.07 : 422,026.31 = 196,903.23 : x
  2. Step 2: Convert to fraction form
    305,608.07/422,026.31 = 196,903.23/x
  3. Step 3: Cross multiply
    305,608.07x = 422,026.31 × 196,903.23
  4. Step 4: Simplify right side
    305,608.07x = 83,098,343,583.98
  5. Step 5: Solve for x
    x = 83,098,343,583.98/305,608.07
  6. Step 6: Final answer
    x = 271,911.48

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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.