Finding the Fourth Proportional to 387,944.81, 535,283.58 and 226,768.68
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Solution
The fourth proportional to 387,944.81, 535,283.58 and 226,768.68 is: 312,893.87
Step by Step Solution
- Step 1: Write the proportion equation
387,944.81 : 535,283.58 = 226,768.68 : x - Step 2: Convert to fraction form
387,944.81/535,283.58 = 226,768.68/x - Step 3: Cross multiply
387,944.81x = 535,283.58 × 226,768.68 - Step 4: Simplify right side
387,944.81x = 121,385,550,862.27 - Step 5: Solve for x
x = 121,385,550,862.27/387,944.81 - Step 6: Final answer
x = 312,893.87
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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.