Finding the Fourth Proportional to 208,116.32, 287,201.24 and 112,622.99
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Solution
The fourth proportional to 208,116.32, 287,201.24 and 112,622.99 is: 155,420.12
Step by Step Solution
- Step 1: Write the proportion equation
208,116.32 : 287,201.24 = 112,622.99 : x - Step 2: Convert to fraction form
208,116.32/287,201.24 = 112,622.99/x - Step 3: Cross multiply
208,116.32x = 287,201.24 × 112,622.99 - Step 4: Simplify right side
208,116.32x = 32,345,463,052.73 - Step 5: Solve for x
x = 32,345,463,052.73/208,116.32 - Step 6: Final answer
x = 155,420.12
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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.