Finding the Fourth Proportional to 355,189.13, 490,170.62 and 212,032.26
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Solution
The fourth proportional to 355,189.13, 490,170.62 and 212,032.26 is: 292,610.26
Step by Step Solution
- Step 1: Write the proportion equation
355,189.13 : 490,170.62 = 212,032.26 : x - Step 2: Convert to fraction form
355,189.13/490,170.62 = 212,032.26/x - Step 3: Cross multiply
355,189.13x = 490,170.62 × 212,032.26 - Step 4: Simplify right side
355,189.13x = 103,931,984,344.20 - Step 5: Solve for x
x = 103,931,984,344.20/355,189.13 - Step 6: Final answer
x = 292,610.26
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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.