Finding the Fourth Proportional to 186,396.86, 279,318.81 and 136,906.94
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Solution
The fourth proportional to 186,396.86, 279,318.81 and 136,906.94 is: 205,157.34
Step by Step Solution
- Step 1: Write the proportion equation
186,396.86 : 279,318.81 = 136,906.94 : x - Step 2: Convert to fraction form
186,396.86/279,318.81 = 136,906.94/x - Step 3: Cross multiply
186,396.86x = 279,318.81 × 136,906.94 - Step 4: Simplify right side
186,396.86x = 38,240,684,773.24 - Step 5: Solve for x
x = 38,240,684,773.24/186,396.86 - Step 6: Final answer
x = 205,157.34
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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.