Finding the Fourth Proportional to 212,942.18, 293,859.63 and 122,303.99
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Solution
The fourth proportional to 212,942.18, 293,859.63 and 122,303.99 is: 168,779.18
Step by Step Solution
- Step 1: Write the proportion equation
212,942.18 : 293,859.63 = 122,303.99 : x - Step 2: Convert to fraction form
212,942.18/293,859.63 = 122,303.99/x - Step 3: Cross multiply
212,942.18x = 293,859.63 × 122,303.99 - Step 4: Simplify right side
212,942.18x = 35,940,205,983.57 - Step 5: Solve for x
x = 35,940,205,983.57/212,942.18 - Step 6: Final answer
x = 168,779.18
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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.