Finding the Fourth Proportional to 272,935.80, 409,403.70 and 193,620.60
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Solution
The fourth proportional to 272,935.80, 409,403.70 and 193,620.60 is: 290,430.90
Step by Step Solution
- Step 1: Write the proportion equation
272,935.80 : 409,403.70 = 193,620.60 : x - Step 2: Convert to fraction form
272,935.80/409,403.70 = 193,620.60/x - Step 3: Cross multiply
272,935.80x = 409,403.70 × 193,620.60 - Step 4: Simplify right side
272,935.80x = 79,268,990,036.22 - Step 5: Solve for x
x = 79,268,990,036.22/272,935.80 - Step 6: Final answer
x = 290,430.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.