Finding the Fourth Proportional to 212,986.70, 319,208.70 and 113,194.70
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Solution
The fourth proportional to 212,986.70, 319,208.70 and 113,194.70 is: 169,647.84
Step by Step Solution
- Step 1: Write the proportion equation
212,986.70 : 319,208.70 = 113,194.70 : x - Step 2: Convert to fraction form
212,986.70/319,208.70 = 113,194.70/x - Step 3: Cross multiply
212,986.70x = 319,208.70 × 113,194.70 - Step 4: Simplify right side
212,986.70x = 36,132,733,033.89 - Step 5: Solve for x
x = 36,132,733,033.89/212,986.70 - Step 6: Final answer
x = 169,647.84
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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.