Finding the Fourth Proportional to 208,160.25, 287,190.66 and 135,529.98
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Solution
The fourth proportional to 208,160.25, 287,190.66 and 135,529.98 is: 186,985.48
Step by Step Solution
- Step 1: Write the proportion equation
208,160.25 : 287,190.66 = 135,529.98 : x - Step 2: Convert to fraction form
208,160.25/287,190.66 = 135,529.98/x - Step 3: Cross multiply
208,160.25x = 287,190.66 × 135,529.98 - Step 4: Simplify right side
208,160.25x = 38,922,944,405.99 - Step 5: Solve for x
x = 38,922,944,405.99/208,160.25 - Step 6: Final answer
x = 186,985.48
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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.