Finding the Fourth Proportional to 321,616.99, 443,822.11 and 185,673.07
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Solution
The fourth proportional to 321,616.99, 443,822.11 and 185,673.07 is: 256,223.45
Step by Step Solution
- Step 1: Write the proportion equation
321,616.99 : 443,822.11 = 185,673.07 : x - Step 2: Convert to fraction form
321,616.99/443,822.11 = 185,673.07/x - Step 3: Cross multiply
321,616.99x = 443,822.11 × 185,673.07 - Step 4: Simplify right side
321,616.99x = 82,405,813,697.58 - Step 5: Solve for x
x = 82,405,813,697.58/321,616.99 - Step 6: Final answer
x = 256,223.45
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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.