Finding the Fourth Proportional to 190,325.09, 262,638.29 and 105,437.09
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Solution
The fourth proportional to 190,325.09, 262,638.29 and 105,437.09 is: 145,497.46
Step by Step Solution
- Step 1: Write the proportion equation
190,325.09 : 262,638.29 = 105,437.09 : x - Step 2: Convert to fraction form
190,325.09/262,638.29 = 105,437.09/x - Step 3: Cross multiply
190,325.09x = 262,638.29 × 105,437.09 - Step 4: Simplify right side
190,325.09x = 27,691,816,492.99 - Step 5: Solve for x
x = 27,691,816,492.99/190,325.09 - Step 6: Final answer
x = 145,497.46
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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.