Finding the Fourth Proportional to 402,996.93, 556,135.76 and 221,704.97
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Solution
The fourth proportional to 402,996.93, 556,135.76 and 221,704.97 is: 305,952.86
Step by Step Solution
- Step 1: Write the proportion equation
402,996.93 : 556,135.76 = 221,704.97 : x - Step 2: Convert to fraction form
402,996.93/556,135.76 = 221,704.97/x - Step 3: Cross multiply
402,996.93x = 556,135.76 × 221,704.97 - Step 4: Simplify right side
402,996.93x = 123,298,061,850.73 - Step 5: Solve for x
x = 123,298,061,850.73/402,996.93 - Step 6: Final answer
x = 305,952.86
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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.