Finding the Fourth Proportional to 305,386.97, 421,258.92 and 190,466.09
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Solution
The fourth proportional to 305,386.97, 421,258.92 and 190,466.09 is: 262,734.00
Step by Step Solution
- Step 1: Write the proportion equation
305,386.97 : 421,258.92 = 190,466.09 : x - Step 2: Convert to fraction form
305,386.97/421,258.92 = 190,466.09/x - Step 3: Cross multiply
305,386.97x = 421,258.92 × 190,466.09 - Step 4: Simplify right side
305,386.97x = 80,235,539,370.02 - Step 5: Solve for x
x = 80,235,539,370.02/305,386.97 - Step 6: Final answer
x = 262,734.00
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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.