Finding the Fourth Proportional to 306,974.64, 423,512.64 and 186,028.68
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Solution
The fourth proportional to 306,974.64, 423,512.64 and 186,028.68 is: 256,651.49
Step by Step Solution
- Step 1: Write the proportion equation
306,974.64 : 423,512.64 = 186,028.68 : x - Step 2: Convert to fraction form
306,974.64/423,512.64 = 186,028.68/x - Step 3: Cross multiply
306,974.64x = 423,512.64 × 186,028.68 - Step 4: Simplify right side
306,974.64x = 78,785,497,382.52 - Step 5: Solve for x
x = 78,785,497,382.52/306,974.64 - Step 6: Final answer
x = 256,651.49
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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.