Finding the Fourth Proportional to 388,102.36, 535,537.92 and 218,332.84
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Solution
The fourth proportional to 388,102.36, 535,537.92 and 218,332.84 is: 301,274.94
Step by Step Solution
- Step 1: Write the proportion equation
388,102.36 : 535,537.92 = 218,332.84 : x - Step 2: Convert to fraction form
388,102.36/535,537.92 = 218,332.84/x - Step 3: Cross multiply
388,102.36x = 535,537.92 × 218,332.84 - Step 4: Simplify right side
388,102.36x = 116,925,515,001.29 - Step 5: Solve for x
x = 116,925,515,001.29/388,102.36 - Step 6: Final answer
x = 301,274.94
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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.