Finding the Fourth Proportional to 217,763.10, 326,490.21 and 84,531.06
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Solution
The fourth proportional to 217,763.10, 326,490.21 and 84,531.06 is: 126,736.64
Step by Step Solution
- Step 1: Write the proportion equation
217,763.10 : 326,490.21 = 84,531.06 : x - Step 2: Convert to fraction form
217,763.10/326,490.21 = 84,531.06/x - Step 3: Cross multiply
217,763.10x = 326,490.21 × 84,531.06 - Step 4: Simplify right side
217,763.10x = 27,598,563,530.92 - Step 5: Solve for x
x = 27,598,563,530.92/217,763.10 - Step 6: Final answer
x = 126,736.64
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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.