Finding the Fourth Proportional to 212,715.97, 293,544.24 and 115,920.67
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Solution
The fourth proportional to 212,715.97, 293,544.24 and 115,920.67 is: 159,968.45
Step by Step Solution
- Step 1: Write the proportion equation
212,715.97 : 293,544.24 = 115,920.67 : x - Step 2: Convert to fraction form
212,715.97/293,544.24 = 115,920.67/x - Step 3: Cross multiply
212,715.97x = 293,544.24 × 115,920.67 - Step 4: Simplify right side
212,715.97x = 34,027,842,928.12 - Step 5: Solve for x
x = 34,027,842,928.12/212,715.97 - Step 6: Final answer
x = 159,968.45
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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.