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Finding the Fourth Proportional to 349,275, 481,999.50 and 190,299

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Solution

The fourth proportional to 349,275, 481,999.50 and 190,299 is: 262,612.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,275 : 481,999.50 = 190,299 : x
  2. Step 2: Convert to fraction form
    349,275/481,999.50 = 190,299/x
  3. Step 3: Cross multiply
    349,275x = 481,999.50 × 190,299
  4. Step 4: Simplify right side
    349,275x = 91,724,022,850.50
  5. Step 5: Solve for x
    x = 91,724,022,850.50/349,275
  6. Step 6: Final answer
    x = 262,612.62

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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.