Finding the Fourth Proportional to 306,194.95, 422,525.10 and 170,220.62
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Solution
The fourth proportional to 306,194.95, 422,525.10 and 170,220.62 is: 234,891.15
Step by Step Solution
- Step 1: Write the proportion equation
306,194.95 : 422,525.10 = 170,220.62 : x - Step 2: Convert to fraction form
306,194.95/422,525.10 = 170,220.62/x - Step 3: Cross multiply
306,194.95x = 422,525.10 × 170,220.62 - Step 4: Simplify right side
306,194.95x = 71,922,482,374.94 - Step 5: Solve for x
x = 71,922,482,374.94/306,194.95 - Step 6: Final answer
x = 234,891.15
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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.