Finding the Fourth Proportional to 190,354.20, 285,531.30 and 169,687.05
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Solution
The fourth proportional to 190,354.20, 285,531.30 and 169,687.05 is: 254,530.58
Step by Step Solution
- Step 1: Write the proportion equation
190,354.20 : 285,531.30 = 169,687.05 : x - Step 2: Convert to fraction form
190,354.20/285,531.30 = 169,687.05/x - Step 3: Cross multiply
190,354.20x = 285,531.30 × 169,687.05 - Step 4: Simplify right side
190,354.20x = 48,450,963,979.67 - Step 5: Solve for x
x = 48,450,963,979.67/190,354.20 - Step 6: Final answer
x = 254,530.58
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1.5x scale
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.