Finding the Fourth Proportional to 261,669.20, 392,503.80 and 149,694.80
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Solution
The fourth proportional to 261,669.20, 392,503.80 and 149,694.80 is: 224,542.20
Step by Step Solution
- Step 1: Write the proportion equation
261,669.20 : 392,503.80 = 149,694.80 : x - Step 2: Convert to fraction form
261,669.20/392,503.80 = 149,694.80/x - Step 3: Cross multiply
261,669.20x = 392,503.80 × 149,694.80 - Step 4: Simplify right side
261,669.20x = 58,755,777,840.24 - Step 5: Solve for x
x = 58,755,777,840.24/261,669.20 - Step 6: Final answer
x = 224,542.20
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1.5x scale
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.