Finding the Fourth Proportional to 151,604.25, 209,212.20 and 83,624.09
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Solution
The fourth proportional to 151,604.25, 209,212.20 and 83,624.09 is: 115,400.33
Step by Step Solution
- Step 1: Write the proportion equation
151,604.25 : 209,212.20 = 83,624.09 : x - Step 2: Convert to fraction form
151,604.25/209,212.20 = 83,624.09/x - Step 3: Cross multiply
151,604.25x = 209,212.20 × 83,624.09 - Step 4: Simplify right side
151,604.25x = 17,495,179,841.90 - Step 5: Solve for x
x = 17,495,179,841.90/151,604.25 - Step 6: Final answer
x = 115,400.33
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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.