Finding the Fourth Proportional to 198,473.84, 274,036.80 and 122,095.60
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Solution
The fourth proportional to 198,473.84, 274,036.80 and 122,095.60 is: 168,579.84
Step by Step Solution
- Step 1: Write the proportion equation
198,473.84 : 274,036.80 = 122,095.60 : x - Step 2: Convert to fraction form
198,473.84/274,036.80 = 122,095.60/x - Step 3: Cross multiply
198,473.84x = 274,036.80 × 122,095.60 - Step 4: Simplify right side
198,473.84x = 33,458,687,518.08 - Step 5: Solve for x
x = 33,458,687,518.08/198,473.84 - Step 6: Final answer
x = 168,579.84
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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.