Finding the Fourth Proportional to 272,219.70, 408,329.55 and 154,121.70
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Solution
The fourth proportional to 272,219.70, 408,329.55 and 154,121.70 is: 231,182.55
Step by Step Solution
- Step 1: Write the proportion equation
272,219.70 : 408,329.55 = 154,121.70 : x - Step 2: Convert to fraction form
272,219.70/408,329.55 = 154,121.70/x - Step 3: Cross multiply
272,219.70x = 408,329.55 × 154,121.70 - Step 4: Simplify right side
272,219.70x = 62,932,444,406.24 - Step 5: Solve for x
x = 62,932,444,406.24/272,219.70 - Step 6: Final answer
x = 231,182.55
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1.5x scale
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.