Finding the Fourth Proportional to 225,968.13, 338,963.43 and 74,151.75
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Solution
The fourth proportional to 225,968.13, 338,963.43 and 74,151.75 is: 111,231.32
Step by Step Solution
- Step 1: Write the proportion equation
225,968.13 : 338,963.43 = 74,151.75 : x - Step 2: Convert to fraction form
225,968.13/338,963.43 = 74,151.75/x - Step 3: Cross multiply
225,968.13x = 338,963.43 × 74,151.75 - Step 4: Simplify right side
225,968.13x = 25,134,733,069.68 - Step 5: Solve for x
x = 25,134,733,069.68/225,968.13 - Step 6: Final answer
x = 111,231.32
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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.