Finding the Fourth Proportional to 332,121.20, 498,181.80 and 309,813.80
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Solution
The fourth proportional to 332,121.20, 498,181.80 and 309,813.80 is: 464,720.70
Step by Step Solution
- Step 1: Write the proportion equation
332,121.20 : 498,181.80 = 309,813.80 : x - Step 2: Convert to fraction form
332,121.20/498,181.80 = 309,813.80/x - Step 3: Cross multiply
332,121.20x = 498,181.80 × 309,813.80 - Step 4: Simplify right side
332,121.20x = 154,343,596,548.84 - Step 5: Solve for x
x = 154,343,596,548.84/332,121.20 - Step 6: Final answer
x = 464,720.70
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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.