Finding the Fourth Proportional to 209,281.23, 288,806.63 and 113,787.99
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Solution
The fourth proportional to 209,281.23, 288,806.63 and 113,787.99 is: 157,026.63
Step by Step Solution
- Step 1: Write the proportion equation
209,281.23 : 288,806.63 = 113,787.99 : x - Step 2: Convert to fraction form
209,281.23/288,806.63 = 113,787.99/x - Step 3: Cross multiply
209,281.23x = 288,806.63 × 113,787.99 - Step 4: Simplify right side
209,281.23x = 32,862,725,357.43 - Step 5: Solve for x
x = 32,862,725,357.43/209,281.23 - Step 6: Final answer
x = 157,026.63
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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.