Finding the Fourth Proportional to 236,342.96, 326,153.28 and 128,912.99
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Solution
The fourth proportional to 236,342.96, 326,153.28 and 128,912.99 is: 177,899.92
Step by Step Solution
- Step 1: Write the proportion equation
236,342.96 : 326,153.28 = 128,912.99 : x - Step 2: Convert to fraction form
236,342.96/326,153.28 = 128,912.99/x - Step 3: Cross multiply
236,342.96x = 326,153.28 × 128,912.99 - Step 4: Simplify right side
236,342.96x = 42,045,394,523.11 - Step 5: Solve for x
x = 42,045,394,523.11/236,342.96 - Step 6: Final answer
x = 177,899.92
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1.5x scale
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.