Finding the Fourth Proportional to 306,009.19, 422,284.23 and 170,039.62
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Solution
The fourth proportional to 306,009.19, 422,284.23 and 170,039.62 is: 234,649.98
Step by Step Solution
- Step 1: Write the proportion equation
306,009.19 : 422,284.23 = 170,039.62 : x - Step 2: Convert to fraction form
306,009.19/422,284.23 = 170,039.62/x - Step 3: Cross multiply
306,009.19x = 422,284.23 × 170,039.62 - Step 4: Simplify right side
306,009.19x = 71,805,050,001.19 - Step 5: Solve for x
x = 71,805,050,001.19/306,009.19 - Step 6: Final answer
x = 234,649.98
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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.