Finding the Fourth Proportional to 272,363.80, 408,059.70 and 131,812.60
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Solution
The fourth proportional to 272,363.80, 408,059.70 and 131,812.60 is: 197,483.70
Step by Step Solution
- Step 1: Write the proportion equation
272,363.80 : 408,059.70 = 131,812.60 : x - Step 2: Convert to fraction form
272,363.80/408,059.70 = 131,812.60/x - Step 3: Cross multiply
272,363.80x = 408,059.70 × 131,812.60 - Step 4: Simplify right side
272,363.80x = 53,787,410,012.22 - Step 5: Solve for x
x = 53,787,410,012.22/272,363.80 - Step 6: Final answer
x = 197,483.70
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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.