Finding the Fourth Proportional to 215,261.28, 322,892.19 and 102,915.09
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Solution
The fourth proportional to 215,261.28, 322,892.19 and 102,915.09 is: 154,372.76
Step by Step Solution
- Step 1: Write the proportion equation
215,261.28 : 322,892.19 = 102,915.09 : x - Step 2: Convert to fraction form
215,261.28/322,892.19 = 102,915.09/x - Step 3: Cross multiply
215,261.28x = 322,892.19 × 102,915.09 - Step 4: Simplify right side
215,261.28x = 33,230,478,794.15 - Step 5: Solve for x
x = 33,230,478,794.15/215,261.28 - Step 6: Final answer
x = 154,372.76
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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.