Finding the Fourth Proportional to 235,851.94, 325,471.46 and 128,420.02
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Solution
The fourth proportional to 235,851.94, 325,471.46 and 128,420.02 is: 177,217.33
Step by Step Solution
- Step 1: Write the proportion equation
235,851.94 : 325,471.46 = 128,420.02 : x - Step 2: Convert to fraction form
235,851.94/325,471.46 = 128,420.02/x - Step 3: Cross multiply
235,851.94x = 325,471.46 × 128,420.02 - Step 4: Simplify right side
235,851.94x = 41,797,051,402.63 - Step 5: Solve for x
x = 41,797,051,402.63/235,851.94 - Step 6: Final answer
x = 177,217.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.