Finding the Fourth Proportional to 211,778.44, 317,715.18 and 71,533.48
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Solution
The fourth proportional to 211,778.44, 317,715.18 and 71,533.48 is: 107,316.27
Step by Step Solution
- Step 1: Write the proportion equation
211,778.44 : 317,715.18 = 71,533.48 : x - Step 2: Convert to fraction form
211,778.44/317,715.18 = 71,533.48/x - Step 3: Cross multiply
211,778.44x = 317,715.18 × 71,533.48 - Step 4: Simplify right side
211,778.44x = 22,727,272,474.23 - Step 5: Solve for x
x = 22,727,272,474.23/211,778.44 - Step 6: Final answer
x = 107,316.27
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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.