Finding the Fourth Proportional to 218,351.19, 301,330.53 and 122,861.28
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Solution
The fourth proportional to 218,351.19, 301,330.53 and 122,861.28 is: 169,551.88
Step by Step Solution
- Step 1: Write the proportion equation
218,351.19 : 301,330.53 = 122,861.28 : x - Step 2: Convert to fraction form
218,351.19/301,330.53 = 122,861.28/x - Step 3: Cross multiply
218,351.19x = 301,330.53 × 122,861.28 - Step 4: Simplify right side
218,351.19x = 37,021,854,618.88 - Step 5: Solve for x
x = 37,021,854,618.88/218,351.19 - Step 6: Final answer
x = 169,551.88
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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.