Finding the Fourth Proportional to 272,106.40, 408,159.60 and 202,122.40
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Solution
The fourth proportional to 272,106.40, 408,159.60 and 202,122.40 is: 303,183.60
Step by Step Solution
- Step 1: Write the proportion equation
272,106.40 : 408,159.60 = 202,122.40 : x - Step 2: Convert to fraction form
272,106.40/408,159.60 = 202,122.40/x - Step 3: Cross multiply
272,106.40x = 408,159.60 × 202,122.40 - Step 4: Simplify right side
272,106.40x = 82,498,197,935.04 - Step 5: Solve for x
x = 82,498,197,935.04/272,106.40 - Step 6: Final answer
x = 303,183.60
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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.