Finding the Fourth Proportional to 216,990.26, 299,377.36 and 140,567.93
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Solution
The fourth proportional to 216,990.26, 299,377.36 and 140,567.93 is: 193,938.92
Step by Step Solution
- Step 1: Write the proportion equation
216,990.26 : 299,377.36 = 140,567.93 : x - Step 2: Convert to fraction form
216,990.26/299,377.36 = 140,567.93/x - Step 3: Cross multiply
216,990.26x = 299,377.36 × 140,567.93 - Step 4: Simplify right side
216,990.26x = 42,082,856,181.09 - Step 5: Solve for x
x = 42,082,856,181.09/216,990.26 - Step 6: Final answer
x = 193,938.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.