Finding the Fourth Proportional to 355,605.74, 490,716.06 and 194,428.70
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Solution
The fourth proportional to 355,605.74, 490,716.06 and 194,428.70 is: 268,300.75
Step by Step Solution
- Step 1: Write the proportion equation
355,605.74 : 490,716.06 = 194,428.70 : x - Step 2: Convert to fraction form
355,605.74/490,716.06 = 194,428.70/x - Step 3: Cross multiply
355,605.74x = 490,716.06 × 194,428.70 - Step 4: Simplify right side
355,605.74x = 95,409,285,614.92 - Step 5: Solve for x
x = 95,409,285,614.92/355,605.74 - Step 6: Final answer
x = 268,300.75
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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.