Finding the Fourth Proportional to 205,899.10, 284,126.97 and 115,239.58
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Solution
The fourth proportional to 205,899.10, 284,126.97 and 115,239.58 is: 159,022.90
Step by Step Solution
- Step 1: Write the proportion equation
205,899.10 : 284,126.97 = 115,239.58 : x - Step 2: Convert to fraction form
205,899.10/284,126.97 = 115,239.58/x - Step 3: Cross multiply
205,899.10x = 284,126.97 × 115,239.58 - Step 4: Simplify right side
205,899.10x = 32,742,672,689.47 - Step 5: Solve for x
x = 32,742,672,689.47/205,899.10 - Step 6: Final answer
x = 159,022.90
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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.