Finding the Fourth Proportional to 268,891.20, 371,402.40 and 197,157.60
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Solution
The fourth proportional to 268,891.20, 371,402.40 and 197,157.60 is: 272,321.32
Step by Step Solution
- Step 1: Write the proportion equation
268,891.20 : 371,402.40 = 197,157.60 : x - Step 2: Convert to fraction form
268,891.20/371,402.40 = 197,157.60/x - Step 3: Cross multiply
268,891.20x = 371,402.40 × 197,157.60 - Step 4: Simplify right side
268,891.20x = 73,224,805,818.24 - Step 5: Solve for x
x = 73,224,805,818.24/268,891.20 - Step 6: Final answer
x = 272,321.32
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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.