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Finding the Fourth Proportional to 345,309.16, 476,796.90 and 270,072.04

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Solution

The fourth proportional to 345,309.16, 476,796.90 and 270,072.04 is: 372,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,309.16 : 476,796.90 = 270,072.04 : x
  2. Step 2: Convert to fraction form
    345,309.16/476,796.90 = 270,072.04/x
  3. Step 3: Cross multiply
    345,309.16x = 476,796.90 × 270,072.04
  4. Step 4: Simplify right side
    345,309.16x = 128,769,511,448.68
  5. Step 5: Solve for x
    x = 128,769,511,448.68/345,309.16
  6. Step 6: Final answer
    x = 372,910.79

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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.