Finding the Third Proportional to 178,989.75 and 385,408.13
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Solution
The third proportional to 178,989.75 and 385,408.13 is: 829,876.70
Step by Step Solution
- Step 1: Write the proportion equation
178,989.75 : 385,408.13 = 385,408.13 : x - Step 2: Convert to fraction form
178,989.75/385,408.13 = 385,408.13/x - Step 3: Cross multiply
178,989.75x = 385,408.13 × 385,408.13 - Step 4: Simplify right side
178,989.75x = 148,539,422,816.02 - Step 5: Solve for x
x = 148,539,422,816.02/178,989.75 - Step 6: Final answer
x = 829,876.70
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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.