Finding the Fourth Proportional to 194,715.75, 268,707.75 and 105,291.75
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Solution
The fourth proportional to 194,715.75, 268,707.75 and 105,291.75 is: 145,302.62
Step by Step Solution
- Step 1: Write the proportion equation
194,715.75 : 268,707.75 = 105,291.75 : x - Step 2: Convert to fraction form
194,715.75/268,707.75 = 105,291.75/x - Step 3: Cross multiply
194,715.75x = 268,707.75 × 105,291.75 - Step 4: Simplify right side
194,715.75x = 28,292,709,236.06 - Step 5: Solve for x
x = 28,292,709,236.06/194,715.75 - Step 6: Final answer
x = 145,302.62
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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.