Finding the Fourth Proportional to 212,202.77, 318,304.26 and 54,431.28
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Solution
The fourth proportional to 212,202.77, 318,304.26 and 54,431.28 is: 81,646.95
Step by Step Solution
- Step 1: Write the proportion equation
212,202.77 : 318,304.26 = 54,431.28 : x - Step 2: Convert to fraction form
212,202.77/318,304.26 = 54,431.28/x - Step 3: Cross multiply
212,202.77x = 318,304.26 × 54,431.28 - Step 4: Simplify right side
212,202.77x = 17,325,708,301.25 - Step 5: Solve for x
x = 17,325,708,301.25/212,202.77 - Step 6: Final answer
x = 81,646.95
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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.