Finding the Fourth Proportional to 209,117.32, 288,577.74 and 113,624.70
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Solution
The fourth proportional to 209,117.32, 288,577.74 and 113,624.70 is: 156,799.82
Step by Step Solution
- Step 1: Write the proportion equation
209,117.32 : 288,577.74 = 113,624.70 : x - Step 2: Convert to fraction form
209,117.32/288,577.74 = 113,624.70/x - Step 3: Cross multiply
209,117.32x = 288,577.74 × 113,624.70 - Step 4: Simplify right side
209,117.32x = 32,789,559,134.18 - Step 5: Solve for x
x = 32,789,559,134.18/209,117.32 - Step 6: Final answer
x = 156,799.82
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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.