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Finding the Fourth Proportional to 439,999, 607,198.62 and 238,795

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Solution

The fourth proportional to 439,999, 607,198.62 and 238,795 is: 329,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,999 : 607,198.62 = 238,795 : x
  2. Step 2: Convert to fraction form
    439,999/607,198.62 = 238,795/x
  3. Step 3: Cross multiply
    439,999x = 607,198.62 × 238,795
  4. Step 4: Simplify right side
    439,999x = 144,995,994,462.90
  5. Step 5: Solve for x
    x = 144,995,994,462.90/439,999
  6. Step 6: Final answer
    x = 329,537.10

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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.