Finding the Fourth Proportional to 207,084.12, 285,799.61 and 115,212.49
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Solution
The fourth proportional to 207,084.12, 285,799.61 and 115,212.49 is: 159,006.32
Step by Step Solution
- Step 1: Write the proportion equation
207,084.12 : 285,799.61 = 115,212.49 : x - Step 2: Convert to fraction form
207,084.12/285,799.61 = 115,212.49/x - Step 3: Cross multiply
207,084.12x = 285,799.61 × 115,212.49 - Step 4: Simplify right side
207,084.12x = 32,927,684,709.13 - Step 5: Solve for x
x = 32,927,684,709.13/207,084.12 - Step 6: Final answer
x = 159,006.32
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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.