Finding the Fourth Proportional to 206,139.84, 309,205.37 and 56,380.13
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Solution
The fourth proportional to 206,139.84, 309,205.37 and 56,380.13 is: 84,568.99
Step by Step Solution
- Step 1: Write the proportion equation
206,139.84 : 309,205.37 = 56,380.13 : x - Step 2: Convert to fraction form
206,139.84/309,205.37 = 56,380.13/x - Step 3: Cross multiply
206,139.84x = 309,205.37 × 56,380.13 - Step 4: Simplify right side
206,139.84x = 17,433,038,957.30 - Step 5: Solve for x
x = 17,433,038,957.30/206,139.84 - Step 6: Final answer
x = 84,568.99
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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.