Finding the Third Proportional to 138,957.75 and 298,977.75
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Solution
The third proportional to 138,957.75 and 298,977.75 is: 643,272.47
Step by Step Solution
- Step 1: Write the proportion equation
138,957.75 : 298,977.75 = 298,977.75 : x - Step 2: Convert to fraction form
138,957.75/298,977.75 = 298,977.75/x - Step 3: Cross multiply
138,957.75x = 298,977.75 × 298,977.75 - Step 4: Simplify right side
138,957.75x = 89,387,694,995.06 - Step 5: Solve for x
x = 89,387,694,995.06/138,957.75 - Step 6: Final answer
x = 643,272.47
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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.