Finding the Fourth Proportional to 387,946.81, 535,286.34 and 226,770.68
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Solution
The fourth proportional to 387,946.81, 535,286.34 and 226,770.68 is: 312,896.62
Step by Step Solution
- Step 1: Write the proportion equation
387,946.81 : 535,286.34 = 226,770.68 : x - Step 2: Convert to fraction form
387,946.81/535,286.34 = 226,770.68/x - Step 3: Cross multiply
387,946.81x = 535,286.34 × 226,770.68 - Step 4: Simplify right side
387,946.81x = 121,387,247,316.51 - Step 5: Solve for x
x = 121,387,247,316.51/387,946.81 - Step 6: Final answer
x = 312,896.62
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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.