Finding the Fourth Proportional to 290,201.82, 400,645.06 and 193,380.08
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Solution
The fourth proportional to 290,201.82, 400,645.06 and 193,380.08 is: 266,975.49
Step by Step Solution
- Step 1: Write the proportion equation
290,201.82 : 400,645.06 = 193,380.08 : x - Step 2: Convert to fraction form
290,201.82/400,645.06 = 193,380.08/x - Step 3: Cross multiply
290,201.82x = 400,645.06 × 193,380.08 - Step 4: Simplify right side
290,201.82x = 77,476,773,754.40 - Step 5: Solve for x
x = 77,476,773,754.40/290,201.82 - Step 6: Final answer
x = 266,975.49
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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.