Finding the Fourth Proportional to 209,778.35, 289,637.25 and 161,294.99
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Solution
The fourth proportional to 209,778.35, 289,637.25 and 161,294.99 is: 222,697.13
Step by Step Solution
- Step 1: Write the proportion equation
209,778.35 : 289,637.25 = 161,294.99 : x - Step 2: Convert to fraction form
209,778.35/289,637.25 = 161,294.99/x - Step 3: Cross multiply
209,778.35x = 289,637.25 × 161,294.99 - Step 4: Simplify right side
209,778.35x = 46,717,037,342.38 - Step 5: Solve for x
x = 46,717,037,342.38/209,778.35 - Step 6: Final answer
x = 222,697.13
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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.