Finding the Fourth Proportional to 212,610.23, 318,922.64 and 112,635.17
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Solution
The fourth proportional to 212,610.23, 318,922.64 and 112,635.17 is: 168,956.62
Step by Step Solution
- Step 1: Write the proportion equation
212,610.23 : 318,922.64 = 112,635.17 : x - Step 2: Convert to fraction form
212,610.23/318,922.64 = 112,635.17/x - Step 3: Cross multiply
212,610.23x = 318,922.64 × 112,635.17 - Step 4: Simplify right side
212,610.23x = 35,921,905,773.25 - Step 5: Solve for x
x = 35,921,905,773.25/212,610.23 - Step 6: Final answer
x = 168,956.62
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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.