Finding the Fourth Proportional to 207,499.06, 286,351.41 and 121,511.62
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Solution
The fourth proportional to 207,499.06, 286,351.41 and 121,511.62 is: 167,687.62
Step by Step Solution
- Step 1: Write the proportion equation
207,499.06 : 286,351.41 = 121,511.62 : x - Step 2: Convert to fraction form
207,499.06/286,351.41 = 121,511.62/x - Step 3: Cross multiply
207,499.06x = 286,351.41 × 121,511.62 - Step 4: Simplify right side
207,499.06x = 34,795,023,718.38 - Step 5: Solve for x
x = 34,795,023,718.38/207,499.06 - Step 6: Final answer
x = 167,687.62
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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.