Finding the Fourth Proportional to 287,383.05, 396,572.99 and 158,296.37
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Solution
The fourth proportional to 287,383.05, 396,572.99 and 158,296.37 is: 218,440.38
Step by Step Solution
- Step 1: Write the proportion equation
287,383.05 : 396,572.99 = 158,296.37 : x - Step 2: Convert to fraction form
287,383.05/396,572.99 = 158,296.37/x - Step 3: Cross multiply
287,383.05x = 396,572.99 × 158,296.37 - Step 4: Simplify right side
287,383.05x = 62,776,061,982.70 - Step 5: Solve for x
x = 62,776,061,982.70/287,383.05 - Step 6: Final answer
x = 218,440.38
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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.