Finding the Fourth Proportional to 320,433.88, 442,201.62 and 177,203.56
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Solution
The fourth proportional to 320,433.88, 442,201.62 and 177,203.56 is: 244,542.50
Step by Step Solution
- Step 1: Write the proportion equation
320,433.88 : 442,201.62 = 177,203.56 : x - Step 2: Convert to fraction form
320,433.88/442,201.62 = 177,203.56/x - Step 3: Cross multiply
320,433.88x = 442,201.62 × 177,203.56 - Step 4: Simplify right side
320,433.88x = 78,359,701,301.77 - Step 5: Solve for x
x = 78,359,701,301.77/320,433.88 - Step 6: Final answer
x = 244,542.50
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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.