Finding the Fourth Proportional to 306,610.13, 422,759.97 and 209,860.58
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Solution
The fourth proportional to 306,610.13, 422,759.97 and 209,860.58 is: 289,359.82
Step by Step Solution
- Step 1: Write the proportion equation
306,610.13 : 422,759.97 = 209,860.58 : x - Step 2: Convert to fraction form
306,610.13/422,759.97 = 209,860.58/x - Step 3: Cross multiply
306,610.13x = 422,759.97 × 209,860.58 - Step 4: Simplify right side
306,610.13x = 88,720,650,391.18 - Step 5: Solve for x
x = 88,720,650,391.18/306,610.13 - Step 6: Final answer
x = 289,359.82
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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.