Finding the Fourth Proportional to 426,722.28, 640,398.36 and 202,082.28
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Solution
The fourth proportional to 426,722.28, 640,398.36 and 202,082.28 is: 303,272.56
Step by Step Solution
- Step 1: Write the proportion equation
426,722.28 : 640,398.36 = 202,082.28 : x - Step 2: Convert to fraction form
426,722.28/640,398.36 = 202,082.28/x - Step 3: Cross multiply
426,722.28x = 640,398.36 × 202,082.28 - Step 4: Simplify right side
426,722.28x = 129,413,157,495.07 - Step 5: Solve for x
x = 129,413,157,495.07/426,722.28 - Step 6: Final answer
x = 303,272.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.