Finding the Fourth Proportional to 326,203.19, 450,161.21 and 190,330.55
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Solution
The fourth proportional to 326,203.19, 450,161.21 and 190,330.55 is: 262,656.63
Step by Step Solution
- Step 1: Write the proportion equation
326,203.19 : 450,161.21 = 190,330.55 : x - Step 2: Convert to fraction form
326,203.19/450,161.21 = 190,330.55/x - Step 3: Cross multiply
326,203.19x = 450,161.21 × 190,330.55 - Step 4: Simplify right side
326,203.19x = 85,679,430,687.97 - Step 5: Solve for x
x = 85,679,430,687.97/326,203.19 - Step 6: Final answer
x = 262,656.63
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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.