Finding the Fourth Proportional to 206,842.68, 285,442.74 and 117,418.68
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Solution
The fourth proportional to 206,842.68, 285,442.74 and 117,418.68 is: 162,037.69
Step by Step Solution
- Step 1: Write the proportion equation
206,842.68 : 285,442.74 = 117,418.68 : x - Step 2: Convert to fraction form
206,842.68/285,442.74 = 117,418.68/x - Step 3: Cross multiply
206,842.68x = 285,442.74 × 117,418.68 - Step 4: Simplify right side
206,842.68x = 33,516,309,746.38 - Step 5: Solve for x
x = 33,516,309,746.38/206,842.68 - Step 6: Final answer
x = 162,037.69
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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.