Finding the Fourth Proportional to 190,330.13, 262,664.18 and 105,447.19
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Solution
The fourth proportional to 190,330.13, 262,664.18 and 105,447.19 is: 145,521.89
Step by Step Solution
- Step 1: Write the proportion equation
190,330.13 : 262,664.18 = 105,447.19 : x - Step 2: Convert to fraction form
190,330.13/262,664.18 = 105,447.19/x - Step 3: Cross multiply
190,330.13x = 262,664.18 × 105,447.19 - Step 4: Simplify right side
190,330.13x = 27,697,198,906.18 - Step 5: Solve for x
x = 27,697,198,906.18/190,330.13 - Step 6: Final answer
x = 145,521.89
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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.