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Finding the Fourth Proportional to 338,721.63, 467,456.82 and 187,818.63

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Solution

The fourth proportional to 338,721.63, 467,456.82 and 187,818.63 is: 259,201.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,721.63 : 467,456.82 = 187,818.63 : x
  2. Step 2: Convert to fraction form
    338,721.63/467,456.82 = 187,818.63/x
  3. Step 3: Cross multiply
    338,721.63x = 467,456.82 × 187,818.63
  4. Step 4: Simplify right side
    338,721.63x = 87,797,099,516.56
  5. Step 5: Solve for x
    x = 87,797,099,516.56/338,721.63
  6. Step 6: Final answer
    x = 259,201.34

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1.5x scale

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.