Finding the Fourth Proportional to 216,738.24, 299,121.28 and 124,860.64
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Solution
The fourth proportional to 216,738.24, 299,121.28 and 124,860.64 is: 172,320.65
Step by Step Solution
- Step 1: Write the proportion equation
216,738.24 : 299,121.28 = 124,860.64 : x - Step 2: Convert to fraction form
216,738.24/299,121.28 = 124,860.64/x - Step 3: Cross multiply
216,738.24x = 299,121.28 × 124,860.64 - Step 4: Simplify right side
216,738.24x = 37,348,474,458.42 - Step 5: Solve for x
x = 37,348,474,458.42/216,738.24 - Step 6: Final answer
x = 172,320.65
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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.