Finding the Fourth Proportional to 212,475.26, 318,712.88 and 72,233.88
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Solution
The fourth proportional to 212,475.26, 318,712.88 and 72,233.88 is: 108,350.82
Step by Step Solution
- Step 1: Write the proportion equation
212,475.26 : 318,712.88 = 72,233.88 : x - Step 2: Convert to fraction form
212,475.26/318,712.88 = 72,233.88/x - Step 3: Cross multiply
212,475.26x = 318,712.88 × 72,233.88 - Step 4: Simplify right side
212,475.26x = 23,021,868,108.96 - Step 5: Solve for x
x = 23,021,868,108.96/212,475.26 - Step 6: Final answer
x = 108,350.82
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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.