Finding the Fourth Proportional to 212,725.62, 293,593.77 and 161,655.12
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Solution
The fourth proportional to 212,725.62, 293,593.77 and 161,655.12 is: 223,108.70
Step by Step Solution
- Step 1: Write the proportion equation
212,725.62 : 293,593.77 = 161,655.12 : x - Step 2: Convert to fraction form
212,725.62/293,593.77 = 161,655.12/x - Step 3: Cross multiply
212,725.62x = 293,593.77 × 161,655.12 - Step 4: Simplify right side
212,725.62x = 47,460,936,120.60 - Step 5: Solve for x
x = 47,460,936,120.60/212,725.62 - Step 6: Final answer
x = 223,108.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.