Finding the Fourth Proportional to 198,690.05, 274,293.81 and 153,266.06
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Solution
The fourth proportional to 198,690.05, 274,293.81 and 153,266.06 is: 211,585.49
Step by Step Solution
- Step 1: Write the proportion equation
198,690.05 : 274,293.81 = 153,266.06 : x - Step 2: Convert to fraction form
198,690.05/274,293.81 = 153,266.06/x - Step 3: Cross multiply
198,690.05x = 274,293.81 × 153,266.06 - Step 4: Simplify right side
198,690.05x = 42,039,930,169.62 - Step 5: Solve for x
x = 42,039,930,169.62/198,690.05 - Step 6: Final answer
x = 211,585.49
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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.