Finding the Third Proportional to 138,458.75 and 207,457.75
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Solution
The third proportional to 138,458.75 and 207,457.75 is: 310,841.45
Step by Step Solution
- Step 1: Write the proportion equation
138,458.75 : 207,457.75 = 207,457.75 : x - Step 2: Convert to fraction form
138,458.75/207,457.75 = 207,457.75/x - Step 3: Cross multiply
138,458.75x = 207,457.75 × 207,457.75 - Step 4: Simplify right side
138,458.75x = 43,038,718,035.06 - Step 5: Solve for x
x = 43,038,718,035.06/138,458.75 - Step 6: Final answer
x = 310,841.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.