Finding the Fourth Proportional to 219,608.74, 303,047.48 and 121,486.12
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Solution
The fourth proportional to 219,608.74, 303,047.48 and 121,486.12 is: 167,643.88
Step by Step Solution
- Step 1: Write the proportion equation
219,608.74 : 303,047.48 = 121,486.12 : x - Step 2: Convert to fraction form
219,608.74/303,047.48 = 121,486.12/x - Step 3: Cross multiply
219,608.74x = 303,047.48 × 121,486.12 - Step 4: Simplify right side
219,608.74x = 36,816,061,155.93 - Step 5: Solve for x
x = 36,816,061,155.93/219,608.74 - Step 6: Final answer
x = 167,643.88
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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.