Finding the Fourth Proportional to 290,202.82, 400,646.44 and 193,381.08
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Solution
The fourth proportional to 290,202.82, 400,646.44 and 193,381.08 is: 266,976.87
Step by Step Solution
- Step 1: Write the proportion equation
290,202.82 : 400,646.44 = 193,381.08 : x - Step 2: Convert to fraction form
290,202.82/400,646.44 = 193,381.08/x - Step 3: Cross multiply
290,202.82x = 400,646.44 × 193,381.08 - Step 4: Simplify right side
290,202.82x = 77,477,441,265.36 - Step 5: Solve for x
x = 77,477,441,265.36/290,202.82 - Step 6: Final answer
x = 266,976.87
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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.