Finding the Fourth Proportional to 212,874.06, 293,766.68 and 117,379.92
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Solution
The fourth proportional to 212,874.06, 293,766.68 and 117,379.92 is: 161,984.55
Step by Step Solution
- Step 1: Write the proportion equation
212,874.06 : 293,766.68 = 117,379.92 : x - Step 2: Convert to fraction form
212,874.06/293,766.68 = 117,379.92/x - Step 3: Cross multiply
212,874.06x = 293,766.68 × 117,379.92 - Step 4: Simplify right side
212,874.06x = 34,482,309,397.07 - Step 5: Solve for x
x = 34,482,309,397.07/212,874.06 - Step 6: Final answer
x = 161,984.55
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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.