Finding the Fourth Proportional to 738,142.80, 1,107,214.21 and 177,177.30
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Solution
The fourth proportional to 738,142.80, 1,107,214.21 and 177,177.30 is: 265,765.95
Step by Step Solution
- Step 1: Write the proportion equation
738,142.80 : 1,107,214.21 = 177,177.30 : x - Step 2: Convert to fraction form
738,142.80/1,107,214.21 = 177,177.30/x - Step 3: Cross multiply
738,142.80x = 1,107,214.21 × 177,177.30 - Step 4: Simplify right side
738,142.80x = 196,173,218,270.42 - Step 5: Solve for x
x = 196,173,218,270.42/738,142.80 - Step 6: Final answer
x = 265,765.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.