Finding the Fourth Proportional to 188,691.91, 283,169.08 and 121,966.54
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Solution
The fourth proportional to 188,691.91, 283,169.08 and 121,966.54 is: 183,034.62
Step by Step Solution
- Step 1: Write the proportion equation
188,691.91 : 283,169.08 = 121,966.54 : x - Step 2: Convert to fraction form
188,691.91/283,169.08 = 121,966.54/x - Step 3: Cross multiply
188,691.91x = 283,169.08 × 121,966.54 - Step 4: Simplify right side
188,691.91x = 34,537,151,201.82 - Step 5: Solve for x
x = 34,537,151,201.82/188,691.91 - Step 6: Final answer
x = 183,034.62
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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.