Finding the Fourth Proportional to 203,646.36, 305,072.18 and 133,312.44
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Solution
The fourth proportional to 203,646.36, 305,072.18 and 133,312.44 is: 199,708.54
Step by Step Solution
- Step 1: Write the proportion equation
203,646.36 : 305,072.18 = 133,312.44 : x - Step 2: Convert to fraction form
203,646.36/305,072.18 = 133,312.44/x - Step 3: Cross multiply
203,646.36x = 305,072.18 × 133,312.44 - Step 4: Simplify right side
203,646.36x = 40,669,916,691.92 - Step 5: Solve for x
x = 40,669,916,691.92/203,646.36 - Step 6: Final answer
x = 199,708.54
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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.