Finding the Fourth Proportional to 218,396.22, 301,336.79 and 122,868.06
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Solution
The fourth proportional to 218,396.22, 301,336.79 and 122,868.06 is: 169,529.79
Step by Step Solution
- Step 1: Write the proportion equation
218,396.22 : 301,336.79 = 122,868.06 : x - Step 2: Convert to fraction form
218,396.22/301,336.79 = 122,868.06/x - Step 3: Cross multiply
218,396.22x = 301,336.79 × 122,868.06 - Step 4: Simplify right side
218,396.22x = 37,024,666,179.59 - Step 5: Solve for x
x = 37,024,666,179.59/218,396.22 - Step 6: Final answer
x = 169,529.79
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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.