Finding the Fourth Proportional to 305,362.99, 421,403.48 and 169,405.80
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Solution
The fourth proportional to 305,362.99, 421,403.48 and 169,405.80 is: 233,781.42
Step by Step Solution
- Step 1: Write the proportion equation
305,362.99 : 421,403.48 = 169,405.80 : x - Step 2: Convert to fraction form
305,362.99/421,403.48 = 169,405.80/x - Step 3: Cross multiply
305,362.99x = 421,403.48 × 169,405.80 - Step 4: Simplify right side
305,362.99x = 71,388,193,652.18 - Step 5: Solve for x
x = 71,388,193,652.18/305,362.99 - Step 6: Final answer
x = 233,781.42
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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.