Finding the Fourth Proportional to 206,644.71, 309,259.29 and 143,535.99
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Solution
The fourth proportional to 206,644.71, 309,259.29 and 143,535.99 is: 214,812.36
Step by Step Solution
- Step 1: Write the proportion equation
206,644.71 : 309,259.29 = 143,535.99 : x - Step 2: Convert to fraction form
206,644.71/309,259.29 = 143,535.99/x - Step 3: Cross multiply
206,644.71x = 309,259.29 × 143,535.99 - Step 4: Simplify right side
206,644.71x = 44,389,838,356.85 - Step 5: Solve for x
x = 44,389,838,356.85/206,644.71 - Step 6: Final answer
x = 214,812.36
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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.