Finding the Fourth Proportional to 209,135.54, 288,583.62 and 118,472.09
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Solution
The fourth proportional to 209,135.54, 288,583.62 and 118,472.09 is: 163,478.21
Step by Step Solution
- Step 1: Write the proportion equation
209,135.54 : 288,583.62 = 118,472.09 : x - Step 2: Convert to fraction form
209,135.54/288,583.62 = 118,472.09/x - Step 3: Cross multiply
209,135.54x = 288,583.62 × 118,472.09 - Step 4: Simplify right side
209,135.54x = 34,189,103,158.25 - Step 5: Solve for x
x = 34,189,103,158.25/209,135.54 - Step 6: Final answer
x = 163,478.21
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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.