Finding the Fourth Proportional to 206,138.84, 309,203.87 and 56,379.13
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Solution
The fourth proportional to 206,138.84, 309,203.87 and 56,379.13 is: 84,567.49
Step by Step Solution
- Step 1: Write the proportion equation
206,138.84 : 309,203.87 = 56,379.13 : x - Step 2: Convert to fraction form
206,138.84/309,203.87 = 56,379.13/x - Step 3: Cross multiply
206,138.84x = 309,203.87 × 56,379.13 - Step 4: Simplify right side
206,138.84x = 17,432,644,604.03 - Step 5: Solve for x
x = 17,432,644,604.03/206,138.84 - Step 6: Final answer
x = 84,567.49
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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.