Finding the Fourth Proportional to 209,122.92, 288,589.14 and 118,478.70
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Solution
The fourth proportional to 209,122.92, 288,589.14 and 118,478.70 is: 163,500.33
Step by Step Solution
- Step 1: Write the proportion equation
209,122.92 : 288,589.14 = 118,478.70 : x - Step 2: Convert to fraction form
209,122.92/288,589.14 = 118,478.70/x - Step 3: Cross multiply
209,122.92x = 288,589.14 × 118,478.70 - Step 4: Simplify right side
209,122.92x = 34,191,666,141.32 - Step 5: Solve for x
x = 34,191,666,141.32/209,122.92 - Step 6: Final answer
x = 163,500.33
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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.