Finding the Fourth Proportional to 305,361.99, 421,402.10 and 169,404.80
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Solution
The fourth proportional to 305,361.99, 421,402.10 and 169,404.80 is: 233,780.03
Step by Step Solution
- Step 1: Write the proportion equation
305,361.99 : 421,402.10 = 169,404.80 : x - Step 2: Convert to fraction form
305,361.99/421,402.10 = 169,404.80/x - Step 3: Cross multiply
305,361.99x = 421,402.10 × 169,404.80 - Step 4: Simplify right side
305,361.99x = 71,387,535,516.05 - Step 5: Solve for x
x = 71,387,535,516.05/305,361.99 - Step 6: Final answer
x = 233,780.03
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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.