Finding the Fourth Proportional to 283,549.68, 391,490.82 and 198,519.12
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Solution
The fourth proportional to 283,549.68, 391,490.82 and 198,519.12 is: 274,090.99
Step by Step Solution
- Step 1: Write the proportion equation
283,549.68 : 391,490.82 = 198,519.12 : x - Step 2: Convert to fraction form
283,549.68/391,490.82 = 198,519.12/x - Step 3: Cross multiply
283,549.68x = 391,490.82 × 198,519.12 - Step 4: Simplify right side
283,549.68x = 77,718,413,074.48 - Step 5: Solve for x
x = 77,718,413,074.48/283,549.68 - Step 6: Final answer
x = 274,090.99
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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.