Finding the Fourth Proportional to 218,321.22, 301,267.17 and 122,809.53
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Solution
The fourth proportional to 218,321.22, 301,267.17 and 122,809.53 is: 169,468.09
Step by Step Solution
- Step 1: Write the proportion equation
218,321.22 : 301,267.17 = 122,809.53 : x - Step 2: Convert to fraction form
218,321.22/301,267.17 = 122,809.53/x - Step 3: Cross multiply
218,321.22x = 301,267.17 × 122,809.53 - Step 4: Simplify right side
218,321.22x = 36,998,479,552.13 - Step 5: Solve for x
x = 36,998,479,552.13/218,321.22 - Step 6: Final answer
x = 169,468.09
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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.