Finding the Fourth Proportional to 218,968.14, 302,186.39 and 123,472.79
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Solution
The fourth proportional to 218,968.14, 302,186.39 and 123,472.79 is: 170,398.28
Step by Step Solution
- Step 1: Write the proportion equation
218,968.14 : 302,186.39 = 123,472.79 : x - Step 2: Convert to fraction form
218,968.14/302,186.39 = 123,472.79/x - Step 3: Cross multiply
218,968.14x = 302,186.39 × 123,472.79 - Step 4: Simplify right side
218,968.14x = 37,311,794,545.03 - Step 5: Solve for x
x = 37,311,794,545.03/218,968.14 - Step 6: Final answer
x = 170,398.28
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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.