Finding the Fourth Proportional to 217,243.48, 299,813.75 and 120,477.64
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Solution
The fourth proportional to 217,243.48, 299,813.75 and 120,477.64 is: 166,268.99
Step by Step Solution
- Step 1: Write the proportion equation
217,243.48 : 299,813.75 = 120,477.64 : x - Step 2: Convert to fraction form
217,243.48/299,813.75 = 120,477.64/x - Step 3: Cross multiply
217,243.48x = 299,813.75 × 120,477.64 - Step 4: Simplify right side
217,243.48x = 36,120,853,039.55 - Step 5: Solve for x
x = 36,120,853,039.55/217,243.48 - Step 6: Final answer
x = 166,268.99
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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.