Finding the Fourth Proportional to 187,626.26, 258,969.81 and 115,963.13
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Solution
The fourth proportional to 187,626.26, 258,969.81 and 115,963.13 is: 160,057.28
Step by Step Solution
- Step 1: Write the proportion equation
187,626.26 : 258,969.81 = 115,963.13 : x - Step 2: Convert to fraction form
187,626.26/258,969.81 = 115,963.13/x - Step 3: Cross multiply
187,626.26x = 258,969.81 × 115,963.13 - Step 4: Simplify right side
187,626.26x = 30,030,949,743.11 - Step 5: Solve for x
x = 30,030,949,743.11/187,626.26 - Step 6: Final answer
x = 160,057.28
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1.5x scale
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.