Finding the Fourth Proportional to 209,083.26, 288,514.08 and 118,421.14
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Solution
The fourth proportional to 209,083.26, 288,514.08 and 118,421.14 is: 163,409.38
Step by Step Solution
- Step 1: Write the proportion equation
209,083.26 : 288,514.08 = 118,421.14 : x - Step 2: Convert to fraction form
209,083.26/288,514.08 = 118,421.14/x - Step 3: Cross multiply
209,083.26x = 288,514.08 × 118,421.14 - Step 4: Simplify right side
209,083.26x = 34,166,166,259.65 - Step 5: Solve for x
x = 34,166,166,259.65/209,083.26 - Step 6: Final answer
x = 163,409.38
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1.5x scale
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.