Finding the Fourth Proportional to 197,138.40, 295,707.60 and 157,772.40
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Solution
The fourth proportional to 197,138.40, 295,707.60 and 157,772.40 is: 236,658.60
Step by Step Solution
- Step 1: Write the proportion equation
197,138.40 : 295,707.60 = 157,772.40 : x - Step 2: Convert to fraction form
197,138.40/295,707.60 = 157,772.40/x - Step 3: Cross multiply
197,138.40x = 295,707.60 × 157,772.40 - Step 4: Simplify right side
197,138.40x = 46,654,497,750.24 - Step 5: Solve for x
x = 46,654,497,750.24/197,138.40 - Step 6: Final answer
x = 236,658.60
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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.