Finding the Fourth Proportional to 229,135.96, 316,222.14 and 128,540.44
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Solution
The fourth proportional to 229,135.96, 316,222.14 and 128,540.44 is: 177,393.95
Step by Step Solution
- Step 1: Write the proportion equation
229,135.96 : 316,222.14 = 128,540.44 : x - Step 2: Convert to fraction form
229,135.96/316,222.14 = 128,540.44/x - Step 3: Cross multiply
229,135.96x = 316,222.14 × 128,540.44 - Step 4: Simplify right side
229,135.96x = 40,647,333,013.34 - Step 5: Solve for x
x = 40,647,333,013.34/229,135.96 - Step 6: Final answer
x = 177,393.95
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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.