Finding the Fourth Proportional to 268,939.40, 371,132.28 and 160,119.68
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Solution
The fourth proportional to 268,939.40, 371,132.28 and 160,119.68 is: 220,962.72
Step by Step Solution
- Step 1: Write the proportion equation
268,939.40 : 371,132.28 = 160,119.68 : x - Step 2: Convert to fraction form
268,939.40/371,132.28 = 160,119.68/x - Step 3: Cross multiply
268,939.40x = 371,132.28 × 160,119.68 - Step 4: Simplify right side
268,939.40x = 59,425,581,911.27 - Step 5: Solve for x
x = 59,425,581,911.27/268,939.40 - Step 6: Final answer
x = 220,962.72
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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.