Finding the Fourth Proportional to 211,456.63, 317,243.49 and 97,639.18
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Solution
The fourth proportional to 211,456.63, 317,243.49 and 97,639.18 is: 146,485.80
Step by Step Solution
- Step 1: Write the proportion equation
211,456.63 : 317,243.49 = 97,639.18 : x - Step 2: Convert to fraction form
211,456.63/317,243.49 = 97,639.18/x - Step 3: Cross multiply
211,456.63x = 317,243.49 × 97,639.18 - Step 4: Simplify right side
211,456.63x = 30,975,392,637.72 - Step 5: Solve for x
x = 30,975,392,637.72/211,456.63 - Step 6: Final answer
x = 146,485.80
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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.