Finding the Fourth Proportional to 339,397.67, 509,207.09 and 161,881.58
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Solution
The fourth proportional to 339,397.67, 509,207.09 and 161,881.58 is: 242,875.11
Step by Step Solution
- Step 1: Write the proportion equation
339,397.67 : 509,207.09 = 161,881.58 : x - Step 2: Convert to fraction form
339,397.67/509,207.09 = 161,881.58/x - Step 3: Cross multiply
339,397.67x = 509,207.09 × 161,881.58 - Step 4: Simplify right side
339,397.67x = 82,431,244,920.96 - Step 5: Solve for x
x = 82,431,244,920.96/339,397.67 - Step 6: Final answer
x = 242,875.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.