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Finding the Fourth Proportional to 338,634, 467,329.50 and 187,731

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Solution

The fourth proportional to 338,634, 467,329.50 and 187,731 is: 259,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,634 : 467,329.50 = 187,731 : x
  2. Step 2: Convert to fraction form
    338,634/467,329.50 = 187,731/x
  3. Step 3: Cross multiply
    338,634x = 467,329.50 × 187,731
  4. Step 4: Simplify right side
    338,634x = 87,732,234,364.50
  5. Step 5: Solve for x
    x = 87,732,234,364.50/338,634
  6. Step 6: Final answer
    x = 259,076.86

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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.