Finding the Fourth Proportional to 212,335.12, 292,682.19 and 161,181.46
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Solution
The fourth proportional to 212,335.12, 292,682.19 and 161,181.46 is: 222,172.12
Step by Step Solution
- Step 1: Write the proportion equation
212,335.12 : 292,682.19 = 161,181.46 : x - Step 2: Convert to fraction form
212,335.12/292,682.19 = 161,181.46/x - Step 3: Cross multiply
212,335.12x = 292,682.19 × 161,181.46 - Step 4: Simplify right side
212,335.12x = 47,174,942,700.20 - Step 5: Solve for x
x = 47,174,942,700.20/212,335.12 - Step 6: Final answer
x = 222,172.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.