Finding the Fourth Proportional to 209,135.25, 288,583.23 and 118,471.80
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Solution
The fourth proportional to 209,135.25, 288,583.23 and 118,471.80 is: 163,477.82
Step by Step Solution
- Step 1: Write the proportion equation
209,135.25 : 288,583.23 = 118,471.80 : x - Step 2: Convert to fraction form
209,135.25/288,583.23 = 118,471.80/x - Step 3: Cross multiply
209,135.25x = 288,583.23 × 118,471.80 - Step 4: Simplify right side
209,135.25x = 34,188,975,345.83 - Step 5: Solve for x
x = 34,188,975,345.83/209,135.25 - Step 6: Final answer
x = 163,477.82
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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.