Finding the Fourth Proportional to 207,777.05, 286,715.13 and 117,155.26
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Solution
The fourth proportional to 207,777.05, 286,715.13 and 117,155.26 is: 161,664.56
Step by Step Solution
- Step 1: Write the proportion equation
207,777.05 : 286,715.13 = 117,155.26 : x - Step 2: Convert to fraction form
207,777.05/286,715.13 = 117,155.26/x - Step 3: Cross multiply
207,777.05x = 286,715.13 × 117,155.26 - Step 4: Simplify right side
207,777.05x = 33,590,185,520.15 - Step 5: Solve for x
x = 33,590,185,520.15/207,777.05 - Step 6: Final answer
x = 161,664.56
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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.