Finding the Fourth Proportional to 219,906.91, 303,315.05 and 201,816.07
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Solution
The fourth proportional to 219,906.91, 303,315.05 and 201,816.07 is: 278,362.56
Step by Step Solution
- Step 1: Write the proportion equation
219,906.91 : 303,315.05 = 201,816.07 : x - Step 2: Convert to fraction form
219,906.91/303,315.05 = 201,816.07/x - Step 3: Cross multiply
219,906.91x = 303,315.05 × 201,816.07 - Step 4: Simplify right side
219,906.91x = 61,213,851,109.11 - Step 5: Solve for x
x = 61,213,851,109.11/219,906.91 - Step 6: Final answer
x = 278,362.56
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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.