Finding the Fourth Proportional to 305,488.18, 421,562.66 and 169,528.06
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Solution
The fourth proportional to 305,488.18, 421,562.66 and 169,528.06 is: 233,942.60
Step by Step Solution
- Step 1: Write the proportion equation
305,488.18 : 421,562.66 = 169,528.06 : x - Step 2: Convert to fraction form
305,488.18/421,562.66 = 169,528.06/x - Step 3: Cross multiply
305,488.18x = 421,562.66 × 169,528.06 - Step 4: Simplify right side
305,488.18x = 71,466,699,918.24 - Step 5: Solve for x
x = 71,466,699,918.24/305,488.18 - Step 6: Final answer
x = 233,942.60
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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.