Finding the Fourth Proportional to 382,968.97, 528,486.89 and 213,203.09
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Solution
The fourth proportional to 382,968.97, 528,486.89 and 213,203.09 is: 294,214.54
Step by Step Solution
- Step 1: Write the proportion equation
382,968.97 : 528,486.89 = 213,203.09 : x - Step 2: Convert to fraction form
382,968.97/528,486.89 = 213,203.09/x - Step 3: Cross multiply
382,968.97x = 528,486.89 × 213,203.09 - Step 4: Simplify right side
382,968.97x = 112,675,038,227.69 - Step 5: Solve for x
x = 112,675,038,227.69/382,968.97 - Step 6: Final answer
x = 294,214.54
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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.