Finding the Third Proportional to 275,055.75 and 420,756.19
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Solution
The third proportional to 275,055.75 and 420,756.19 is: 643,635.95
Step by Step Solution
- Step 1: Write the proportion equation
275,055.75 : 420,756.19 = 420,756.19 : x - Step 2: Convert to fraction form
275,055.75/420,756.19 = 420,756.19/x - Step 3: Cross multiply
275,055.75x = 420,756.19 × 420,756.19 - Step 4: Simplify right side
275,055.75x = 177,035,769,319.54 - Step 5: Solve for x
x = 177,035,769,319.54/275,055.75 - Step 6: Final answer
x = 643,635.95
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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.