Finding the Fourth Proportional to 198,630.66, 274,115.52 and 107,992.74
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Solution
The fourth proportional to 198,630.66, 274,115.52 and 107,992.74 is: 149,032.81
Step by Step Solution
- Step 1: Write the proportion equation
198,630.66 : 274,115.52 = 107,992.74 : x - Step 2: Convert to fraction form
198,630.66/274,115.52 = 107,992.74/x - Step 3: Cross multiply
198,630.66x = 274,115.52 × 107,992.74 - Step 4: Simplify right side
198,630.66x = 29,602,486,081.32 - Step 5: Solve for x
x = 29,602,486,081.32/198,630.66 - Step 6: Final answer
x = 149,032.81
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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.