Finding the Fourth Proportional to 272,527.49, 408,794.88 and 85,538.99
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Solution
The fourth proportional to 272,527.49, 408,794.88 and 85,538.99 is: 128,309.63
Step by Step Solution
- Step 1: Write the proportion equation
272,527.49 : 408,794.88 = 85,538.99 : x - Step 2: Convert to fraction form
272,527.49/408,794.88 = 85,538.99/x - Step 3: Cross multiply
272,527.49x = 408,794.88 × 85,538.99 - Step 4: Simplify right side
272,527.49x = 34,967,901,152.37 - Step 5: Solve for x
x = 34,967,901,152.37/272,527.49 - Step 6: Final answer
x = 128,309.63
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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.