Finding the Fourth Proportional to 206,683.40, 285,283.68 and 135,074.54
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Solution
The fourth proportional to 206,683.40, 285,283.68 and 135,074.54 is: 186,442.46
Step by Step Solution
- Step 1: Write the proportion equation
206,683.40 : 285,283.68 = 135,074.54 : x - Step 2: Convert to fraction form
206,683.40/285,283.68 = 135,074.54/x - Step 3: Cross multiply
206,683.40x = 285,283.68 × 135,074.54 - Step 4: Simplify right side
206,683.40x = 38,534,561,845.51 - Step 5: Solve for x
x = 38,534,561,845.51/206,683.40 - Step 6: Final answer
x = 186,442.46
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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.