Finding the Fourth Proportional to 212,678.73, 293,497.16 and 115,882.11
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Solution
The fourth proportional to 212,678.73, 293,497.16 and 115,882.11 is: 159,917.59
Step by Step Solution
- Step 1: Write the proportion equation
212,678.73 : 293,497.16 = 115,882.11 : x - Step 2: Convert to fraction form
212,678.73/293,497.16 = 115,882.11/x - Step 3: Cross multiply
212,678.73x = 293,497.16 × 115,882.11 - Step 4: Simplify right side
212,678.73x = 34,011,069,600.40 - Step 5: Solve for x
x = 34,011,069,600.40/212,678.73 - Step 6: Final answer
x = 159,917.59
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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.