Finding the Fourth Proportional to 209,455.80, 313,838.10 and 104,047.80
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Solution
The fourth proportional to 209,455.80, 313,838.10 and 104,047.80 is: 155,900.02
Step by Step Solution
- Step 1: Write the proportion equation
209,455.80 : 313,838.10 = 104,047.80 : x - Step 2: Convert to fraction form
209,455.80/313,838.10 = 104,047.80/x - Step 3: Cross multiply
209,455.80x = 313,838.10 × 104,047.80 - Step 4: Simplify right side
209,455.80x = 32,654,163,861.18 - Step 5: Solve for x
x = 32,654,163,861.18/209,455.80 - Step 6: Final answer
x = 155,900.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.