Finding the Fourth Proportional to 393,971.68, 591,142.11 and 194,183.11
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Solution
The fourth proportional to 393,971.68, 591,142.11 and 194,183.11 is: 291,365.65
Step by Step Solution
- Step 1: Write the proportion equation
393,971.68 : 591,142.11 = 194,183.11 : x - Step 2: Convert to fraction form
393,971.68/591,142.11 = 194,183.11/x - Step 3: Cross multiply
393,971.68x = 591,142.11 × 194,183.11 - Step 4: Simplify right side
393,971.68x = 114,789,813,371.76 - Step 5: Solve for x
x = 114,789,813,371.76/393,971.68 - Step 6: Final answer
x = 291,365.65
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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.