Finding the Fourth Proportional to 190,398.09, 285,728.36 and 65,739.09
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Solution
The fourth proportional to 190,398.09, 285,728.36 and 65,739.09 is: 98,653.95
Step by Step Solution
- Step 1: Write the proportion equation
190,398.09 : 285,728.36 = 65,739.09 : x - Step 2: Convert to fraction form
190,398.09/285,728.36 = 65,739.09/x - Step 3: Cross multiply
190,398.09x = 285,728.36 × 65,739.09 - Step 4: Simplify right side
190,398.09x = 18,783,523,486.16 - Step 5: Solve for x
x = 18,783,523,486.16/190,398.09 - Step 6: Final answer
x = 98,653.95
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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.