Finding the Fourth Proportional to 207,917.80, 311,358.30 and 166,445.80
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Solution
The fourth proportional to 207,917.80, 311,358.30 and 166,445.80 is: 249,253.70
Step by Step Solution
- Step 1: Write the proportion equation
207,917.80 : 311,358.30 = 166,445.80 : x - Step 2: Convert to fraction form
207,917.80/311,358.30 = 166,445.80/x - Step 3: Cross multiply
207,917.80x = 311,358.30 × 166,445.80 - Step 4: Simplify right side
207,917.80x = 51,824,281,330.14 - Step 5: Solve for x
x = 51,824,281,330.14/207,917.80 - Step 6: Final answer
x = 249,253.70
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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.