Finding the Fourth Proportional to 220,428.42, 304,194.74 and 124,933.07
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Solution
The fourth proportional to 220,428.42, 304,194.74 and 124,933.07 is: 172,409.62
Step by Step Solution
- Step 1: Write the proportion equation
220,428.42 : 304,194.74 = 124,933.07 : x - Step 2: Convert to fraction form
220,428.42/304,194.74 = 124,933.07/x - Step 3: Cross multiply
220,428.42x = 304,194.74 × 124,933.07 - Step 4: Simplify right side
220,428.42x = 38,003,980,600.41 - Step 5: Solve for x
x = 38,003,980,600.41/220,428.42 - Step 6: Final answer
x = 172,409.62
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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.