Finding the Fourth Proportional to 418,367.62, 577,343.86 and 227,382.18
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Solution
The fourth proportional to 418,367.62, 577,343.86 and 227,382.18 is: 313,785.53
Step by Step Solution
- Step 1: Write the proportion equation
418,367.62 : 577,343.86 = 227,382.18 : x - Step 2: Convert to fraction form
418,367.62/577,343.86 = 227,382.18/x - Step 3: Cross multiply
418,367.62x = 577,343.86 × 227,382.18 - Step 4: Simplify right side
418,367.62x = 131,277,705,496.42 - Step 5: Solve for x
x = 131,277,705,496.42/418,367.62 - Step 6: Final answer
x = 313,785.53
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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.