Finding the Fourth Proportional to 212,857.68, 293,745.80 and 117,367.76
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Solution
The fourth proportional to 212,857.68, 293,745.80 and 117,367.76 is: 161,968.72
Step by Step Solution
- Step 1: Write the proportion equation
212,857.68 : 293,745.80 = 117,367.76 : x - Step 2: Convert to fraction form
212,857.68/293,745.80 = 117,367.76/x - Step 3: Cross multiply
212,857.68x = 293,745.80 × 117,367.76 - Step 4: Simplify right side
212,857.68x = 34,476,286,555.41 - Step 5: Solve for x
x = 34,476,286,555.41/212,857.68 - Step 6: Final answer
x = 161,968.72
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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.