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Finding the Fourth Proportional to 343,713.62, 515,370.62 and 229,991.39

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Solution

The fourth proportional to 343,713.62, 515,370.62 and 229,991.39 is: 344,853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,713.62 : 515,370.62 = 229,991.39 : x
  2. Step 2: Convert to fraction form
    343,713.62/515,370.62 = 229,991.39/x
  3. Step 3: Cross multiply
    343,713.62x = 515,370.62 × 229,991.39
  4. Step 4: Simplify right side
    343,713.62x = 118,530,802,852.04
  5. Step 5: Solve for x
    x = 118,530,802,852.04/343,713.62
  6. Step 6: Final answer
    x = 344,853.38

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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.