Finding the Fourth Proportional to 186,921.67, 280,528.98 and 130,394.09
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Solution
The fourth proportional to 186,921.67, 280,528.98 and 130,394.09 is: 195,693.32
Step by Step Solution
- Step 1: Write the proportion equation
186,921.67 : 280,528.98 = 130,394.09 : x - Step 2: Convert to fraction form
186,921.67/280,528.98 = 130,394.09/x - Step 3: Cross multiply
186,921.67x = 280,528.98 × 130,394.09 - Step 4: Simplify right side
186,921.67x = 36,579,321,767.05 - Step 5: Solve for x
x = 36,579,321,767.05/186,921.67 - Step 6: Final answer
x = 195,693.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.