Finding the Fourth Proportional to 355,188.13, 490,169.24 and 212,031.26
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Solution
The fourth proportional to 355,188.13, 490,169.24 and 212,031.26 is: 292,608.88
Step by Step Solution
- Step 1: Write the proportion equation
355,188.13 : 490,169.24 = 212,031.26 : x - Step 2: Convert to fraction form
355,188.13/490,169.24 = 212,031.26/x - Step 3: Cross multiply
355,188.13x = 490,169.24 × 212,031.26 - Step 4: Simplify right side
355,188.13x = 103,931,201,570.44 - Step 5: Solve for x
x = 103,931,201,570.44/355,188.13 - Step 6: Final answer
x = 292,608.88
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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.