Finding the Third Proportional to 128,553.75 and 282,021.75
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Solution
The third proportional to 128,553.75 and 282,021.75 is: 618,700.48
Step by Step Solution
- Step 1: Write the proportion equation
128,553.75 : 282,021.75 = 282,021.75 : x - Step 2: Convert to fraction form
128,553.75/282,021.75 = 282,021.75/x - Step 3: Cross multiply
128,553.75x = 282,021.75 × 282,021.75 - Step 4: Simplify right side
128,553.75x = 79,536,267,473.06 - Step 5: Solve for x
x = 79,536,267,473.06/128,553.75 - Step 6: Final answer
x = 618,700.48
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.