Finding the Fourth Proportional to 322,931.68, 445,640.16 and 179,687.68
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Solution
The fourth proportional to 322,931.68, 445,640.16 and 179,687.68 is: 247,965.91
Step by Step Solution
- Step 1: Write the proportion equation
322,931.68 : 445,640.16 = 179,687.68 : x - Step 2: Convert to fraction form
322,931.68/445,640.16 = 179,687.68/x - Step 3: Cross multiply
322,931.68x = 445,640.16 × 179,687.68 - Step 4: Simplify right side
322,931.68x = 80,076,046,465.23 - Step 5: Solve for x
x = 80,076,046,465.23/322,931.68 - Step 6: Final answer
x = 247,965.91
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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.