Finding the Fourth Proportional to 305,238.57, 421,227.10 and 169,272.37
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Solution
The fourth proportional to 305,238.57, 421,227.10 and 169,272.37 is: 233,594.69
Step by Step Solution
- Step 1: Write the proportion equation
305,238.57 : 421,227.10 = 169,272.37 : x - Step 2: Convert to fraction form
305,238.57/421,227.10 = 169,272.37/x - Step 3: Cross multiply
305,238.57x = 421,227.10 × 169,272.37 - Step 4: Simplify right side
305,238.57x = 71,302,109,525.23 - Step 5: Solve for x
x = 71,302,109,525.23/305,238.57 - Step 6: Final answer
x = 233,594.69
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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.