Finding the Fourth Proportional to 162,805.20, 244,207.80 and 74,231.70
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Solution
The fourth proportional to 162,805.20, 244,207.80 and 74,231.70 is: 111,347.55
Step by Step Solution
- Step 1: Write the proportion equation
162,805.20 : 244,207.80 = 74,231.70 : x - Step 2: Convert to fraction form
162,805.20/244,207.80 = 74,231.70/x - Step 3: Cross multiply
162,805.20x = 244,207.80 × 74,231.70 - Step 4: Simplify right side
162,805.20x = 18,127,960,147.26 - Step 5: Solve for x
x = 18,127,960,147.26/162,805.20 - Step 6: Final answer
x = 111,347.55
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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.