Finding the Fourth Proportional to 208,369.63, 287,551.47 and 112,876.26
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Solution
The fourth proportional to 208,369.63, 287,551.47 and 112,876.26 is: 155,769.99
Step by Step Solution
- Step 1: Write the proportion equation
208,369.63 : 287,551.47 = 112,876.26 : x - Step 2: Convert to fraction form
208,369.63/287,551.47 = 112,876.26/x - Step 3: Cross multiply
208,369.63x = 287,551.47 × 112,876.26 - Step 4: Simplify right side
208,369.63x = 32,457,734,491.10 - Step 5: Solve for x
x = 32,457,734,491.10/208,369.63 - Step 6: Final answer
x = 155,769.99
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1.5x scale
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.