Finding the Fourth Proportional to 396,070.21, 546,577.04 and 214,782.09
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Solution
The fourth proportional to 396,070.21, 546,577.04 and 214,782.09 is: 296,399.37
Step by Step Solution
- Step 1: Write the proportion equation
396,070.21 : 546,577.04 = 214,782.09 : x - Step 2: Convert to fraction form
396,070.21/546,577.04 = 214,782.09/x - Step 3: Cross multiply
396,070.21x = 546,577.04 × 214,782.09 - Step 4: Simplify right side
396,070.21x = 117,394,960,723.55 - Step 5: Solve for x
x = 117,394,960,723.55/396,070.21 - Step 6: Final answer
x = 296,399.37
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1.5x scale
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.