Finding the Third Proportional to 138,478 and 298,176
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Solution
The third proportional to 138,478 and 298,176 is: 642,043.70
Step by Step Solution
- Step 1: Write the proportion equation
138,478 : 298,176 = 298,176 : x - Step 2: Convert to fraction form
138,478/298,176 = 298,176/x - Step 3: Cross multiply
138,478x = 298,176 × 298,176 - Step 4: Simplify right side
138,478x = 88,908,926,976 - Step 5: Solve for x
x = 88,908,926,976/138,478 - Step 6: Final answer
x = 642,043.70
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.