Finding the Fourth Proportional to 209,135.38, 288,583.40 and 118,471.93
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Solution
The fourth proportional to 209,135.38, 288,583.40 and 118,471.93 is: 163,477.99
Step by Step Solution
- Step 1: Write the proportion equation
209,135.38 : 288,583.40 = 118,471.93 : x - Step 2: Convert to fraction form
209,135.38/288,583.40 = 118,471.93/x - Step 3: Cross multiply
209,135.38x = 288,583.40 × 118,471.93 - Step 4: Simplify right side
209,135.38x = 34,189,030,921.05 - Step 5: Solve for x
x = 34,189,030,921.05/209,135.38 - Step 6: Final answer
x = 163,477.99
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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.