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Finding the Fourth Proportional to 343,687.44, 515,556.44 and 90,966.22

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Solution

The fourth proportional to 343,687.44, 515,556.44 and 90,966.22 is: 136,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,687.44 : 515,556.44 = 90,966.22 : x
  2. Step 2: Convert to fraction form
    343,687.44/515,556.44 = 90,966.22/x
  3. Step 3: Cross multiply
    343,687.44x = 515,556.44 × 90,966.22
  4. Step 4: Simplify right side
    343,687.44x = 46,898,222,552.55
  5. Step 5: Solve for x
    x = 46,898,222,552.55/343,687.44
  6. Step 6: Final answer
    x = 136,456.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.