Finding the Fourth Proportional to 309,986.20, 464,979.30 and 110,531.80
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Solution
The fourth proportional to 309,986.20, 464,979.30 and 110,531.80 is: 165,797.70
Step by Step Solution
- Step 1: Write the proportion equation
309,986.20 : 464,979.30 = 110,531.80 : x - Step 2: Convert to fraction form
309,986.20/464,979.30 = 110,531.80/x - Step 3: Cross multiply
309,986.20x = 464,979.30 × 110,531.80 - Step 4: Simplify right side
309,986.20x = 51,394,998,991.74 - Step 5: Solve for x
x = 51,394,998,991.74/309,986.20 - Step 6: Final answer
x = 165,797.70
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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.