Finding the Fourth Proportional to 212,419.24, 318,825.96 and 107,312.02
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Solution
The fourth proportional to 212,419.24, 318,825.96 and 107,312.02 is: 161,067.60
Step by Step Solution
- Step 1: Write the proportion equation
212,419.24 : 318,825.96 = 107,312.02 : x - Step 2: Convert to fraction form
212,419.24/318,825.96 = 107,312.02/x - Step 3: Cross multiply
212,419.24x = 318,825.96 × 107,312.02 - Step 4: Simplify right side
212,419.24x = 34,213,857,796.04 - Step 5: Solve for x
x = 34,213,857,796.04/212,419.24 - Step 6: Final answer
x = 161,067.60
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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.