Finding the Fourth Proportional to 321,042.02, 443,032.55 and 177,798.99
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Solution
The fourth proportional to 321,042.02, 443,032.55 and 177,798.99 is: 245,359.59
Step by Step Solution
- Step 1: Write the proportion equation
321,042.02 : 443,032.55 = 177,798.99 : x - Step 2: Convert to fraction form
321,042.02/443,032.55 = 177,798.99/x - Step 3: Cross multiply
321,042.02x = 443,032.55 × 177,798.99 - Step 4: Simplify right side
321,042.02x = 78,770,739,927.12 - Step 5: Solve for x
x = 78,770,739,927.12/321,042.02 - Step 6: Final answer
x = 245,359.59
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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.