Finding the Fourth Proportional to 312,211.14, 430,850.55 and 168,971.13
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Solution
The fourth proportional to 312,211.14, 430,850.55 and 168,971.13 is: 233,179.71
Step by Step Solution
- Step 1: Write the proportion equation
312,211.14 : 430,850.55 = 168,971.13 : x - Step 2: Convert to fraction form
312,211.14/430,850.55 = 168,971.13/x - Step 3: Cross multiply
312,211.14x = 430,850.55 × 168,971.13 - Step 4: Simplify right side
312,211.14x = 72,801,304,294.62 - Step 5: Solve for x
x = 72,801,304,294.62/312,211.14 - Step 6: Final answer
x = 233,179.71
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1.5x scale
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.