Finding the Third Proportional to 138,865.50 and 207,389.75
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Solution
The third proportional to 138,865.50 and 207,389.75 is: 309,727.82
Step by Step Solution
- Step 1: Write the proportion equation
138,865.50 : 207,389.75 = 207,389.75 : x - Step 2: Convert to fraction form
138,865.50/207,389.75 = 207,389.75/x - Step 3: Cross multiply
138,865.50x = 207,389.75 × 207,389.75 - Step 4: Simplify right side
138,865.50x = 43,010,508,405.06 - Step 5: Solve for x
x = 43,010,508,405.06/138,865.50 - Step 6: Final answer
x = 309,727.82
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.