Finding the Fourth Proportional to 216,721.44, 299,122.26 and 131,865.84
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Solution
The fourth proportional to 216,721.44, 299,122.26 and 131,865.84 is: 182,003.26
Step by Step Solution
- Step 1: Write the proportion equation
216,721.44 : 299,122.26 = 131,865.84 : x - Step 2: Convert to fraction form
216,721.44/299,122.26 = 131,865.84/x - Step 3: Cross multiply
216,721.44x = 299,122.26 × 131,865.84 - Step 4: Simplify right side
216,721.44x = 39,444,008,077.60 - Step 5: Solve for x
x = 39,444,008,077.60/216,721.44 - Step 6: Final answer
x = 182,003.26
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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.