Finding the Fourth Proportional to 355,444.66, 490,478.92 and 202,470.84
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Solution
The fourth proportional to 355,444.66, 490,478.92 and 202,470.84 is: 279,389.99
Step by Step Solution
- Step 1: Write the proportion equation
355,444.66 : 490,478.92 = 202,470.84 : x - Step 2: Convert to fraction form
355,444.66/490,478.92 = 202,470.84/x - Step 3: Cross multiply
355,444.66x = 490,478.92 × 202,470.84 - Step 4: Simplify right side
355,444.66x = 99,307,678,934.69 - Step 5: Solve for x
x = 99,307,678,934.69/355,444.66 - Step 6: Final answer
x = 279,389.99
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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.