Finding the Fourth Proportional to 217,910.13, 326,882.21 and 84,780.15
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Solution
The fourth proportional to 217,910.13, 326,882.21 and 84,780.15 is: 127,176.84
Step by Step Solution
- Step 1: Write the proportion equation
217,910.13 : 326,882.21 = 84,780.15 : x - Step 2: Convert to fraction form
217,910.13/326,882.21 = 84,780.15/x - Step 3: Cross multiply
217,910.13x = 326,882.21 × 84,780.15 - Step 4: Simplify right side
217,910.13x = 27,713,122,372.23 - Step 5: Solve for x
x = 27,713,122,372.23/217,910.13 - Step 6: Final answer
x = 127,176.84
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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.