Finding the Fourth Proportional to 355,524.77, 490,631.91 and 212,258.09
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Solution
The fourth proportional to 355,524.77, 490,631.91 and 212,258.09 is: 292,920.78
Step by Step Solution
- Step 1: Write the proportion equation
355,524.77 : 490,631.91 = 212,258.09 : x - Step 2: Convert to fraction form
355,524.77/490,631.91 = 212,258.09/x - Step 3: Cross multiply
355,524.77x = 490,631.91 × 212,258.09 - Step 4: Simplify right side
355,524.77x = 104,140,592,109.65 - Step 5: Solve for x
x = 104,140,592,109.65/355,524.77 - Step 6: Final answer
x = 292,920.78
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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.