Finding the Fourth Proportional to 199,378.19, 299,191.78 and 132,864.99
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Solution
The fourth proportional to 199,378.19, 299,191.78 and 132,864.99 is: 199,380.45
Step by Step Solution
- Step 1: Write the proportion equation
199,378.19 : 299,191.78 = 132,864.99 : x - Step 2: Convert to fraction form
199,378.19/299,191.78 = 132,864.99/x - Step 3: Cross multiply
199,378.19x = 299,191.78 × 132,864.99 - Step 4: Simplify right side
199,378.19x = 39,752,112,857.78 - Step 5: Solve for x
x = 39,752,112,857.78/199,378.19 - Step 6: Final answer
x = 199,380.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.