Finding the Fourth Proportional to 195,015.87, 268,861.68 and 154,862.55
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Solution
The fourth proportional to 195,015.87, 268,861.68 and 154,862.55 is: 213,503.68
Step by Step Solution
- Step 1: Write the proportion equation
195,015.87 : 268,861.68 = 154,862.55 : x - Step 2: Convert to fraction form
195,015.87/268,861.68 = 154,862.55/x - Step 3: Cross multiply
195,015.87x = 268,861.68 × 154,862.55 - Step 4: Simplify right side
195,015.87x = 41,636,605,362.08 - Step 5: Solve for x
x = 41,636,605,362.08/195,015.87 - Step 6: Final answer
x = 213,503.68
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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.