Finding the Fourth Proportional to 151,998.24, 209,753.28 and 84,930.24
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Solution
The fourth proportional to 151,998.24, 209,753.28 and 84,930.24 is: 117,201.33
Step by Step Solution
- Step 1: Write the proportion equation
151,998.24 : 209,753.28 = 84,930.24 : x - Step 2: Convert to fraction form
151,998.24/209,753.28 = 84,930.24/x - Step 3: Cross multiply
151,998.24x = 209,753.28 × 84,930.24 - Step 4: Simplify right side
151,998.24x = 17,814,396,411.19 - Step 5: Solve for x
x = 17,814,396,411.19/151,998.24 - Step 6: Final answer
x = 117,201.33
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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.