Finding the Fourth Proportional to 305,080.64, 420,544.62 and 214,181.60
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Solution
The fourth proportional to 305,080.64, 420,544.62 and 214,181.60 is: 295,242.99
Step by Step Solution
- Step 1: Write the proportion equation
305,080.64 : 420,544.62 = 214,181.60 : x - Step 2: Convert to fraction form
305,080.64/420,544.62 = 214,181.60/x - Step 3: Cross multiply
305,080.64x = 420,544.62 × 214,181.60 - Step 4: Simplify right side
305,080.64x = 90,072,919,582.99 - Step 5: Solve for x
x = 90,072,919,582.99/305,080.64 - Step 6: Final answer
x = 295,242.99
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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.