Finding the Fourth Proportional to 189,863.79, 284,276.89 and 136,608.99
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Solution
The fourth proportional to 189,863.79, 284,276.89 and 136,608.99 is: 204,540.21
Step by Step Solution
- Step 1: Write the proportion equation
189,863.79 : 284,276.89 = 136,608.99 : x - Step 2: Convert to fraction form
189,863.79/284,276.89 = 136,608.99/x - Step 3: Cross multiply
189,863.79x = 284,276.89 × 136,608.99 - Step 4: Simplify right side
189,863.79x = 38,834,778,823.24 - Step 5: Solve for x
x = 38,834,778,823.24/189,863.79 - Step 6: Final answer
x = 204,540.21
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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.