Finding the Fourth Proportional to 306,137.50, 422,474.80 and 168,322.26
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Solution
The fourth proportional to 306,137.50, 422,474.80 and 168,322.26 is: 232,287.50
Step by Step Solution
- Step 1: Write the proportion equation
306,137.50 : 422,474.80 = 168,322.26 : x - Step 2: Convert to fraction form
306,137.50/422,474.80 = 168,322.26/x - Step 3: Cross multiply
306,137.50x = 422,474.80 × 168,322.26 - Step 4: Simplify right side
306,137.50x = 71,111,913,129.05 - Step 5: Solve for x
x = 71,111,913,129.05/306,137.50 - Step 6: Final answer
x = 232,287.50
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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.