Finding the Fourth Proportional to 283,391.26, 391,080.29 and 154,329.95
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Solution
The fourth proportional to 283,391.26, 391,080.29 and 154,329.95 is: 212,975.52
Step by Step Solution
- Step 1: Write the proportion equation
283,391.26 : 391,080.29 = 154,329.95 : x - Step 2: Convert to fraction form
283,391.26/391,080.29 = 154,329.95/x - Step 3: Cross multiply
283,391.26x = 391,080.29 × 154,329.95 - Step 4: Simplify right side
283,391.26x = 60,355,401,807.74 - Step 5: Solve for x
x = 60,355,401,807.74/283,391.26 - Step 6: Final answer
x = 212,975.52
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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.