Finding the Fourth Proportional to 351,858.91, 485,560.06 and 198,891.74
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Solution
The fourth proportional to 351,858.91, 485,560.06 and 198,891.74 is: 274,467.64
Step by Step Solution
- Step 1: Write the proportion equation
351,858.91 : 485,560.06 = 198,891.74 : x - Step 2: Convert to fraction form
351,858.91/485,560.06 = 198,891.74/x - Step 3: Cross multiply
351,858.91x = 485,560.06 × 198,891.74 - Step 4: Simplify right side
351,858.91x = 96,573,884,962.06 - Step 5: Solve for x
x = 96,573,884,962.06/351,858.91 - Step 6: Final answer
x = 274,467.64
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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.