Finding the Fourth Proportional to 234,138.68, 351,217.84 and 74,211.12
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Solution
The fourth proportional to 234,138.68, 351,217.84 and 74,211.12 is: 111,319.79
Step by Step Solution
- Step 1: Write the proportion equation
234,138.68 : 351,217.84 = 74,211.12 : x - Step 2: Convert to fraction form
234,138.68/351,217.84 = 74,211.12/x - Step 3: Cross multiply
234,138.68x = 351,217.84 × 74,211.12 - Step 4: Simplify right side
234,138.68x = 26,064,269,270.38 - Step 5: Solve for x
x = 26,064,269,270.38/234,138.68 - Step 6: Final answer
x = 111,319.79
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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.