Finding the Fourth Proportional to 302,427.20, 453,640.80 and 209,115.20
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Solution
The fourth proportional to 302,427.20, 453,640.80 and 209,115.20 is: 313,672.80
Step by Step Solution
- Step 1: Write the proportion equation
302,427.20 : 453,640.80 = 209,115.20 : x - Step 2: Convert to fraction form
302,427.20/453,640.80 = 209,115.20/x - Step 3: Cross multiply
302,427.20x = 453,640.80 × 209,115.20 - Step 4: Simplify right side
302,427.20x = 94,863,186,620.16 - Step 5: Solve for x
x = 94,863,186,620.16/302,427.20 - Step 6: Final answer
x = 313,672.80
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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.