Finding the Fourth Proportional to 412.70, 569.73 and 323.99
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Solution
The fourth proportional to 412.70, 569.73 and 323.99 is: 447.26
Step by Step Solution
- Step 1: Write the proportion equation
412.70 : 569.73 = 323.99 : x - Step 2: Convert to fraction form
412.70/569.73 = 323.99/x - Step 3: Cross multiply
412.70x = 569.73 × 323.99 - Step 4: Simplify right side
412.70x = 184,583.97 - Step 5: Solve for x
x = 184,583.97/412.70 - Step 6: Final answer
x = 447.26
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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.