Finding the Fourth Proportional to 355,486.24, 490,576.86 and 212,258.80
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Solution
The fourth proportional to 355,486.24, 490,576.86 and 212,258.80 is: 292,920.64
Step by Step Solution
- Step 1: Write the proportion equation
355,486.24 : 490,576.86 = 212,258.80 : x - Step 2: Convert to fraction form
355,486.24/490,576.86 = 212,258.80/x - Step 3: Cross multiply
355,486.24x = 490,576.86 × 212,258.80 - Step 4: Simplify right side
355,486.24x = 104,129,255,611.37 - Step 5: Solve for x
x = 104,129,255,611.37/355,486.24 - Step 6: Final answer
x = 292,920.64
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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.