Finding the Fourth Proportional to 438,772.80, 657,640.80 and 186,052.80
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Solution
The fourth proportional to 438,772.80, 657,640.80 and 186,052.80 is: 278,859.38
Step by Step Solution
- Step 1: Write the proportion equation
438,772.80 : 657,640.80 = 186,052.80 : x - Step 2: Convert to fraction form
438,772.80/657,640.80 = 186,052.80/x - Step 3: Cross multiply
438,772.80x = 657,640.80 × 186,052.80 - Step 4: Simplify right side
438,772.80x = 122,355,912,234.24 - Step 5: Solve for x
x = 122,355,912,234.24/438,772.80 - Step 6: Final answer
x = 278,859.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.