Finding the Fourth Proportional to 306,646.41, 422,992.68 and 199,287.95
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Solution
The fourth proportional to 306,646.41, 422,992.68 and 199,287.95 is: 274,900.80
Step by Step Solution
- Step 1: Write the proportion equation
306,646.41 : 422,992.68 = 199,287.95 : x - Step 2: Convert to fraction form
306,646.41/422,992.68 = 199,287.95/x - Step 3: Cross multiply
306,646.41x = 422,992.68 × 199,287.95 - Step 4: Simplify right side
306,646.41x = 84,297,342,320.91 - Step 5: Solve for x
x = 84,297,342,320.91/306,646.41 - Step 6: Final answer
x = 274,900.80
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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.