Finding the Fourth Proportional to 212,765.12, 293,616.46 and 117,272.19
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Solution
The fourth proportional to 212,765.12, 293,616.46 and 117,272.19 is: 161,835.95
Step by Step Solution
- Step 1: Write the proportion equation
212,765.12 : 293,616.46 = 117,272.19 : x - Step 2: Convert to fraction form
212,765.12/293,616.46 = 117,272.19/x - Step 3: Cross multiply
212,765.12x = 293,616.46 × 117,272.19 - Step 4: Simplify right side
212,765.12x = 34,433,045,284.25 - Step 5: Solve for x
x = 34,433,045,284.25/212,765.12 - Step 6: Final answer
x = 161,835.95
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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.