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Finding the Fourth Proportional to 344,124.72, 515,356.49 and 206,953.35

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Solution

The fourth proportional to 344,124.72, 515,356.49 and 206,953.35 is: 309,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,124.72 : 515,356.49 = 206,953.35 : x
  2. Step 2: Convert to fraction form
    344,124.72/515,356.49 = 206,953.35/x
  3. Step 3: Cross multiply
    344,124.72x = 515,356.49 × 206,953.35
  4. Step 4: Simplify right side
    344,124.72x = 106,654,751,014.98
  5. Step 5: Solve for x
    x = 106,654,751,014.98/344,124.72
  6. Step 6: Final answer
    x = 309,930.51

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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.