Finding the Fourth Proportional to 305,154.44, 421,113.06 and 169,187.96
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Solution
The fourth proportional to 305,154.44, 421,113.06 and 169,187.96 is: 233,479.35
Step by Step Solution
- Step 1: Write the proportion equation
305,154.44 : 421,113.06 = 169,187.96 : x - Step 2: Convert to fraction form
305,154.44/421,113.06 = 169,187.96/x - Step 3: Cross multiply
305,154.44x = 421,113.06 × 169,187.96 - Step 4: Simplify right side
305,154.44x = 71,247,259,550.76 - Step 5: Solve for x
x = 71,247,259,550.76/305,154.44 - Step 6: Final answer
x = 233,479.35
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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.