Finding the Fourth Proportional to 272,403.80, 408,605.70 and 132,435.80
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Solution
The fourth proportional to 272,403.80, 408,605.70 and 132,435.80 is: 198,653.70
Step by Step Solution
- Step 1: Write the proportion equation
272,403.80 : 408,605.70 = 132,435.80 : x - Step 2: Convert to fraction form
272,403.80/408,605.70 = 132,435.80/x - Step 3: Cross multiply
272,403.80x = 408,605.70 × 132,435.80 - Step 4: Simplify right side
272,403.80x = 54,114,022,764.06 - Step 5: Solve for x
x = 54,114,022,764.06/272,403.80 - Step 6: Final answer
x = 198,653.70
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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.