Finding the Fourth Proportional to 212,691.24, 318,735.84 and 117,963.12
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Solution
The fourth proportional to 212,691.24, 318,735.84 and 117,963.12 is: 176,777.73
Step by Step Solution
- Step 1: Write the proportion equation
212,691.24 : 318,735.84 = 117,963.12 : x - Step 2: Convert to fraction form
212,691.24/318,735.84 = 117,963.12/x - Step 3: Cross multiply
212,691.24x = 318,735.84 × 117,963.12 - Step 4: Simplify right side
212,691.24x = 37,599,074,142.22 - Step 5: Solve for x
x = 37,599,074,142.22/212,691.24 - Step 6: Final answer
x = 176,777.73
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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.