Finding the Fourth Proportional to 355,296.40, 490,336.98 and 202,341.06
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Solution
The fourth proportional to 355,296.40, 490,336.98 and 202,341.06 is: 279,246.58
Step by Step Solution
- Step 1: Write the proportion equation
355,296.40 : 490,336.98 = 202,341.06 : x - Step 2: Convert to fraction form
355,296.40/490,336.98 = 202,341.06/x - Step 3: Cross multiply
355,296.40x = 490,336.98 × 202,341.06 - Step 4: Simplify right side
355,296.40x = 99,215,304,290.40 - Step 5: Solve for x
x = 99,215,304,290.40/355,296.40 - Step 6: Final answer
x = 279,246.58
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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.