Finding the Fourth Proportional to 212,419.84, 293,147.11 and 115,619.01
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Solution
The fourth proportional to 212,419.84, 293,147.11 and 115,619.01 is: 159,558.45
Step by Step Solution
- Step 1: Write the proportion equation
212,419.84 : 293,147.11 = 115,619.01 : x - Step 2: Convert to fraction form
212,419.84/293,147.11 = 115,619.01/x - Step 3: Cross multiply
212,419.84x = 293,147.11 × 115,619.01 - Step 4: Simplify right side
212,419.84x = 33,893,379,375.43 - Step 5: Solve for x
x = 33,893,379,375.43/212,419.84 - Step 6: Final answer
x = 159,558.45
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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.