Finding the Fourth Proportional to 305,204.28, 421,186.95 and 169,243.98
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Solution
The fourth proportional to 305,204.28, 421,186.95 and 169,243.98 is: 233,559.49
Step by Step Solution
- Step 1: Write the proportion equation
305,204.28 : 421,186.95 = 169,243.98 : x - Step 2: Convert to fraction form
305,204.28/421,186.95 = 169,243.98/x - Step 3: Cross multiply
305,204.28x = 421,186.95 × 169,243.98 - Step 4: Simplify right side
305,204.28x = 71,283,355,742.06 - Step 5: Solve for x
x = 71,283,355,742.06/305,204.28 - Step 6: Final answer
x = 233,559.49
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1.5x scale
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.