Finding the Third Proportional to 203,220 and 316,459.75
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Solution
The third proportional to 203,220 and 316,459.75 is: 492,799.79
Step by Step Solution
- Step 1: Write the proportion equation
203,220 : 316,459.75 = 316,459.75 : x - Step 2: Convert to fraction form
203,220/316,459.75 = 316,459.75/x - Step 3: Cross multiply
203,220x = 316,459.75 × 316,459.75 - Step 4: Simplify right side
203,220x = 100,146,773,370.06 - Step 5: Solve for x
x = 100,146,773,370.06/203,220 - Step 6: Final answer
x = 492,799.79
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Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.