Finding the Fourth Proportional to 209,038.56, 288,592.91 and 137,626.19
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Solution
The fourth proportional to 209,038.56, 288,592.91 and 137,626.19 is: 190,002.95
Step by Step Solution
- Step 1: Write the proportion equation
209,038.56 : 288,592.91 = 137,626.19 : x - Step 2: Convert to fraction form
209,038.56/288,592.91 = 137,626.19/x - Step 3: Cross multiply
209,038.56x = 288,592.91 × 137,626.19 - Step 4: Simplify right side
209,038.56x = 39,717,942,131.54 - Step 5: Solve for x
x = 39,717,942,131.54/209,038.56 - Step 6: Final answer
x = 190,002.95
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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.