Finding the Fourth Proportional to 207,961.23, 286,989.29 and 117,316.92
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Solution
The fourth proportional to 207,961.23, 286,989.29 and 117,316.92 is: 161,898.92
Step by Step Solution
- Step 1: Write the proportion equation
207,961.23 : 286,989.29 = 117,316.92 : x - Step 2: Convert to fraction form
207,961.23/286,989.29 = 117,316.92/x - Step 3: Cross multiply
207,961.23x = 286,989.29 × 117,316.92 - Step 4: Simplify right side
207,961.23x = 33,668,698,365.94 - Step 5: Solve for x
x = 33,668,698,365.94/207,961.23 - Step 6: Final answer
x = 161,898.92
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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.