Finding the Fourth Proportional to 206,643.29, 285,177.21 and 114,762.99
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Solution
The fourth proportional to 206,643.29, 285,177.21 and 114,762.99 is: 158,378.19
Step by Step Solution
- Step 1: Write the proportion equation
206,643.29 : 285,177.21 = 114,762.99 : x - Step 2: Convert to fraction form
206,643.29/285,177.21 = 114,762.99/x - Step 3: Cross multiply
206,643.29x = 285,177.21 × 114,762.99 - Step 4: Simplify right side
206,643.29x = 32,727,789,299.46 - Step 5: Solve for x
x = 32,727,789,299.46/206,643.29 - Step 6: Final answer
x = 158,378.19
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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.