Finding the Fourth Proportional to 208,730.05, 288,047.58 and 113,236.73
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Solution
The fourth proportional to 208,730.05, 288,047.58 and 113,236.73 is: 156,266.75
Step by Step Solution
- Step 1: Write the proportion equation
208,730.05 : 288,047.58 = 113,236.73 : x - Step 2: Convert to fraction form
208,730.05/288,047.58 = 113,236.73/x - Step 3: Cross multiply
208,730.05x = 288,047.58 × 113,236.73 - Step 4: Simplify right side
208,730.05x = 32,617,566,879.18 - Step 5: Solve for x
x = 32,617,566,879.18/208,730.05 - Step 6: Final answer
x = 156,266.75
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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.