Finding the Fourth Proportional to 170,944.38, 256,151.70 and 128,779.02
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Solution
The fourth proportional to 170,944.38, 256,151.70 and 128,779.02 is: 192,968.99
Step by Step Solution
- Step 1: Write the proportion equation
170,944.38 : 256,151.70 = 128,779.02 : x - Step 2: Convert to fraction form
170,944.38/256,151.70 = 128,779.02/x - Step 3: Cross multiply
170,944.38x = 256,151.70 × 128,779.02 - Step 4: Simplify right side
170,944.38x = 32,986,964,897.33 - Step 5: Solve for x
x = 32,986,964,897.33/170,944.38 - Step 6: Final answer
x = 192,968.99
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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.