Finding the Fourth Proportional to 208,082.49, 287,151.79 and 112,587.09
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Solution
The fourth proportional to 208,082.49, 287,151.79 and 112,587.09 is: 155,369.08
Step by Step Solution
- Step 1: Write the proportion equation
208,082.49 : 287,151.79 = 112,587.09 : x - Step 2: Convert to fraction form
208,082.49/287,151.79 = 112,587.09/x - Step 3: Cross multiply
208,082.49x = 287,151.79 × 112,587.09 - Step 4: Simplify right side
208,082.49x = 32,329,584,424.39 - Step 5: Solve for x
x = 32,329,584,424.39/208,082.49 - Step 6: Final answer
x = 155,369.08
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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.