Finding the Fourth Proportional to 318,896.24, 478,371.84 and 82,236.96
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Solution
The fourth proportional to 318,896.24, 478,371.84 and 82,236.96 is: 123,362.53
Step by Step Solution
- Step 1: Write the proportion equation
318,896.24 : 478,371.84 = 82,236.96 : x - Step 2: Convert to fraction form
318,896.24/478,371.84 = 82,236.96/x - Step 3: Cross multiply
318,896.24x = 478,371.84 × 82,236.96 - Step 4: Simplify right side
318,896.24x = 39,339,845,871.21 - Step 5: Solve for x
x = 39,339,845,871.21/318,896.24 - Step 6: Final answer
x = 123,362.53
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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.