Finding the Fourth Proportional to 206,557.36, 309,586.89 and 106,663.10
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Solution
The fourth proportional to 206,557.36, 309,586.89 and 106,663.10 is: 159,865.99
Step by Step Solution
- Step 1: Write the proportion equation
206,557.36 : 309,586.89 = 106,663.10 : x - Step 2: Convert to fraction form
206,557.36/309,586.89 = 106,663.10/x - Step 3: Cross multiply
206,557.36x = 309,586.89 × 106,663.10 - Step 4: Simplify right side
206,557.36x = 33,021,496,258.81 - Step 5: Solve for x
x = 33,021,496,258.81/206,557.36 - Step 6: Final answer
x = 159,865.99
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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.