Finding the Fourth Proportional to 203,343.88, 305,054.20 and 77,021.96
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Solution
The fourth proportional to 203,343.88, 305,054.20 and 77,021.96 is: 115,547.48
Step by Step Solution
- Step 1: Write the proportion equation
203,343.88 : 305,054.20 = 77,021.96 : x - Step 2: Convert to fraction form
203,343.88/305,054.20 = 77,021.96/x - Step 3: Cross multiply
203,343.88x = 305,054.20 × 77,021.96 - Step 4: Simplify right side
203,343.88x = 23,495,872,390.23 - Step 5: Solve for x
x = 23,495,872,390.23/203,343.88 - Step 6: Final answer
x = 115,547.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.