Finding the Fourth Proportional to 382,694.96, 528,110.88 and 221,556.80
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Solution
The fourth proportional to 382,694.96, 528,110.88 and 221,556.80 is: 305,743.66
Step by Step Solution
- Step 1: Write the proportion equation
382,694.96 : 528,110.88 = 221,556.80 : x - Step 2: Convert to fraction form
382,694.96/528,110.88 = 221,556.80/x - Step 3: Cross multiply
382,694.96x = 528,110.88 × 221,556.80 - Step 4: Simplify right side
382,694.96x = 117,006,556,617.98 - Step 5: Solve for x
x = 117,006,556,617.98/382,694.96 - Step 6: Final answer
x = 305,743.66
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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.