Finding the Fourth Proportional to 236,896.28, 326,916.14 and 129,466.32
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Solution
The fourth proportional to 236,896.28, 326,916.14 and 129,466.32 is: 178,663.12
Step by Step Solution
- Step 1: Write the proportion equation
236,896.28 : 326,916.14 = 129,466.32 : x - Step 2: Convert to fraction form
236,896.28/326,916.14 = 129,466.32/x - Step 3: Cross multiply
236,896.28x = 326,916.14 × 129,466.32 - Step 4: Simplify right side
236,896.28x = 42,324,629,594.40 - Step 5: Solve for x
x = 42,324,629,594.40/236,896.28 - Step 6: Final answer
x = 178,663.12
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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.