Finding the Fourth Proportional to 194,643.99, 268,609.11 and 105,219.99
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Solution
The fourth proportional to 194,643.99, 268,609.11 and 105,219.99 is: 145,203.80
Step by Step Solution
- Step 1: Write the proportion equation
194,643.99 : 268,609.11 = 105,219.99 : x - Step 2: Convert to fraction form
194,643.99/268,609.11 = 105,219.99/x - Step 3: Cross multiply
194,643.99x = 268,609.11 × 105,219.99 - Step 4: Simplify right side
194,643.99x = 28,263,047,868.11 - Step 5: Solve for x
x = 28,263,047,868.11/194,643.99 - Step 6: Final answer
x = 145,203.80
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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.