Finding the Fourth Proportional to 305,260.48, 421,285.34 and 169,338.21
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Solution
The fourth proportional to 305,260.48, 421,285.34 and 169,338.21 is: 233,701.09
Step by Step Solution
- Step 1: Write the proportion equation
305,260.48 : 421,285.34 = 169,338.21 : x - Step 2: Convert to fraction form
305,260.48/421,285.34 = 169,338.21/x - Step 3: Cross multiply
305,260.48x = 421,285.34 × 169,338.21 - Step 4: Simplify right side
305,260.48x = 71,339,704,528.15 - Step 5: Solve for x
x = 71,339,704,528.15/305,260.48 - Step 6: Final answer
x = 233,701.09
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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.