Finding the Fourth Proportional to 283,639.95, 391,523.36 and 253,372.68
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Solution
The fourth proportional to 283,639.95, 391,523.36 and 253,372.68 is: 349,743.83
Step by Step Solution
- Step 1: Write the proportion equation
283,639.95 : 391,523.36 = 253,372.68 : x - Step 2: Convert to fraction form
283,639.95/391,523.36 = 253,372.68/x - Step 3: Cross multiply
283,639.95x = 391,523.36 × 253,372.68 - Step 4: Simplify right side
283,639.95x = 99,201,321,738.94 - Step 5: Solve for x
x = 99,201,321,738.94/283,639.95 - Step 6: Final answer
x = 349,743.83
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1.5x scale
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.