Finding the Fourth Proportional to 188,751.22, 260,642.81 and 128,465.88
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Solution
The fourth proportional to 188,751.22, 260,642.81 and 128,465.88 is: 177,395.99
Step by Step Solution
- Step 1: Write the proportion equation
188,751.22 : 260,642.81 = 128,465.88 : x - Step 2: Convert to fraction form
188,751.22/260,642.81 = 128,465.88/x - Step 3: Cross multiply
188,751.22x = 260,642.81 × 128,465.88 - Step 4: Simplify right side
188,751.22x = 33,483,708,273.49 - Step 5: Solve for x
x = 33,483,708,273.49/188,751.22 - Step 6: Final answer
x = 177,395.99
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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.