Finding the Fourth Proportional to 310,755.82, 428,840.64 and 176,619.82
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Solution
The fourth proportional to 310,755.82, 428,840.64 and 176,619.82 is: 243,733.99
Step by Step Solution
- Step 1: Write the proportion equation
310,755.82 : 428,840.64 = 176,619.82 : x - Step 2: Convert to fraction form
310,755.82/428,840.64 = 176,619.82/x - Step 3: Cross multiply
310,755.82x = 428,840.64 × 176,619.82 - Step 4: Simplify right side
310,755.82x = 75,741,756,645.48 - Step 5: Solve for x
x = 75,741,756,645.48/310,755.82 - Step 6: Final answer
x = 243,733.99
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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.