Finding the Fourth Proportional to 222,117.68, 306,543.48 and 121,530.80
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Solution
The fourth proportional to 222,117.68, 306,543.48 and 121,530.80 is: 167,724.04
Step by Step Solution
- Step 1: Write the proportion equation
222,117.68 : 306,543.48 = 121,530.80 : x - Step 2: Convert to fraction form
222,117.68/306,543.48 = 121,530.80/x - Step 3: Cross multiply
222,117.68x = 306,543.48 × 121,530.80 - Step 4: Simplify right side
222,117.68x = 37,254,474,359.18 - Step 5: Solve for x
x = 37,254,474,359.18/222,117.68 - Step 6: Final answer
x = 167,724.04
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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.