Finding the Third Proportional to 138,939.28 and 298,943.53
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Solution
The third proportional to 138,939.28 and 298,943.53 is: 643,210.72
Step by Step Solution
- Step 1: Write the proportion equation
138,939.28 : 298,943.53 = 298,943.53 : x - Step 2: Convert to fraction form
138,939.28/298,943.53 = 298,943.53/x - Step 3: Cross multiply
138,939.28x = 298,943.53 × 298,943.53 - Step 4: Simplify right side
138,939.28x = 89,367,234,876.22 - Step 5: Solve for x
x = 89,367,234,876.22/138,939.28 - Step 6: Final answer
x = 643,210.72
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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.