Finding the Fourth Proportional to 382,970.97, 528,489.64 and 213,205.09
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Solution
The fourth proportional to 382,970.97, 528,489.64 and 213,205.09 is: 294,217.29
Step by Step Solution
- Step 1: Write the proportion equation
382,970.97 : 528,489.64 = 213,205.09 : x - Step 2: Convert to fraction form
382,970.97/528,489.64 = 213,205.09/x - Step 3: Cross multiply
382,970.97x = 528,489.64 × 213,205.09 - Step 4: Simplify right side
382,970.97x = 112,676,681,260.27 - Step 5: Solve for x
x = 112,676,681,260.27/382,970.97 - Step 6: Final answer
x = 294,217.29
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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.