Finding the Fourth Proportional to 221,296.84, 305,388.20 and 125,803.56
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Solution
The fourth proportional to 221,296.84, 305,388.20 and 125,803.56 is: 173,608.09
Step by Step Solution
- Step 1: Write the proportion equation
221,296.84 : 305,388.20 = 125,803.56 : x - Step 2: Convert to fraction form
221,296.84/305,388.20 = 125,803.56/x - Step 3: Cross multiply
221,296.84x = 305,388.20 × 125,803.56 - Step 4: Simplify right side
221,296.84x = 38,418,922,741.99 - Step 5: Solve for x
x = 38,418,922,741.99/221,296.84 - Step 6: Final answer
x = 173,608.09
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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.