Finding the Fourth Proportional to 305,305.96, 421,305.05 and 169,330.15
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Solution
The fourth proportional to 305,305.96, 421,305.05 and 169,330.15 is: 233,666.07
Step by Step Solution
- Step 1: Write the proportion equation
305,305.96 : 421,305.05 = 169,330.15 : x - Step 2: Convert to fraction form
305,305.96/421,305.05 = 169,330.15/x - Step 3: Cross multiply
305,305.96x = 421,305.05 × 169,330.15 - Step 4: Simplify right side
305,305.96x = 71,339,644,939.89 - Step 5: Solve for x
x = 71,339,644,939.89/305,305.96 - Step 6: Final answer
x = 233,666.07
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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.