Finding the Fourth Proportional to 305,208.19, 421,192.40 and 169,247.87
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Solution
The fourth proportional to 305,208.19, 421,192.40 and 169,247.87 is: 233,564.89
Step by Step Solution
- Step 1: Write the proportion equation
305,208.19 : 421,192.40 = 169,247.87 : x - Step 2: Convert to fraction form
305,208.19/421,192.40 = 169,247.87/x - Step 3: Cross multiply
305,208.19x = 421,192.40 × 169,247.87 - Step 4: Simplify right side
305,208.19x = 71,285,916,560.19 - Step 5: Solve for x
x = 71,285,916,560.19/305,208.19 - Step 6: Final answer
x = 233,564.89
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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.