Finding the Fourth Proportional to 212,696.70, 319,014.81 and 84,613.02
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Solution
The fourth proportional to 212,696.70, 319,014.81 and 84,613.02 is: 126,907.50
Step by Step Solution
- Step 1: Write the proportion equation
212,696.70 : 319,014.81 = 84,613.02 : x - Step 2: Convert to fraction form
212,696.70/319,014.81 = 84,613.02/x - Step 3: Cross multiply
212,696.70x = 319,014.81 × 84,613.02 - Step 4: Simplify right side
212,696.70x = 26,992,806,498.83 - Step 5: Solve for x
x = 26,992,806,498.83/212,696.70 - Step 6: Final answer
x = 126,907.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.