Finding the Fourth Proportional to 242,989.69, 335,324.73 and 135,559.81
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Solution
The fourth proportional to 242,989.69, 335,324.73 and 135,559.81 is: 187,071.96
Step by Step Solution
- Step 1: Write the proportion equation
242,989.69 : 335,324.73 = 135,559.81 : x - Step 2: Convert to fraction form
242,989.69/335,324.73 = 135,559.81/x - Step 3: Cross multiply
242,989.69x = 335,324.73 × 135,559.81 - Step 4: Simplify right side
242,989.69x = 45,456,556,687.10 - Step 5: Solve for x
x = 45,456,556,687.10/242,989.69 - Step 6: Final answer
x = 187,071.96
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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.