Finding the Fourth Proportional to 218,211.25, 301,129.56 and 122,718.63
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Solution
The fourth proportional to 218,211.25, 301,129.56 and 122,718.63 is: 169,350.60
Step by Step Solution
- Step 1: Write the proportion equation
218,211.25 : 301,129.56 = 122,718.63 : x - Step 2: Convert to fraction form
218,211.25/301,129.56 = 122,718.63/x - Step 3: Cross multiply
218,211.25x = 301,129.56 × 122,718.63 - Step 4: Simplify right side
218,211.25x = 36,954,207,055.70 - Step 5: Solve for x
x = 36,954,207,055.70/218,211.25 - Step 6: Final answer
x = 169,350.60
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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.