Finding the Fourth Proportional to 203,129.49, 304,507.62 and 69,978.09
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Solution
The fourth proportional to 203,129.49, 304,507.62 and 69,978.09 is: 104,902.85
Step by Step Solution
- Step 1: Write the proportion equation
203,129.49 : 304,507.62 = 69,978.09 : x - Step 2: Convert to fraction form
203,129.49/304,507.62 = 69,978.09/x - Step 3: Cross multiply
203,129.49x = 304,507.62 × 69,978.09 - Step 4: Simplify right side
203,129.49x = 21,308,861,638.05 - Step 5: Solve for x
x = 21,308,861,638.05/203,129.49 - Step 6: Final answer
x = 104,902.85
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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.